[BUGFIX] Support mysql socket connection
[Packages/TYPO3.CMS.git] / typo3 / sysext / core / Classes / Database / DatabaseConnection.php
1 <?php
2 namespace TYPO3\CMS\Core\Database;
3
4 /***************************************************************
5 * Copyright notice
6 *
7 * (c) 2004-2013 Kasper Skårhøj (kasperYYYY@typo3.com)
8 * All rights reserved
9 *
10 * This script is part of the TYPO3 project. The TYPO3 project is
11 * free software; you can redistribute it and/or modify
12 * it under the terms of the GNU General Public License as published by
13 * the Free Software Foundation; either version 2 of the License, or
14 * (at your option) any later version.
15 *
16 * The GNU General Public License can be found at
17 * http://www.gnu.org/copyleft/gpl.html.
18 * A copy is found in the textfile GPL.txt and important notices to the license
19 * from the author is found in LICENSE.txt distributed with these scripts.
20 *
21 *
22 * This script is distributed in the hope that it will be useful,
23 * but WITHOUT ANY WARRANTY; without even the implied warranty of
24 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
25 * GNU General Public License for more details.
26 *
27 * This copyright notice MUST APPEAR in all copies of the script!
28 ***************************************************************/
29
30 /**
31 * Contains the class "DatabaseConnection" containing functions for building SQL queries
32 * and mysqli wrappers, thus providing a foundational API to all database
33 * interaction.
34 * This class is instantiated globally as $TYPO3_DB in TYPO3 scripts.
35 *
36 * TYPO3 "database wrapper" class (new in 3.6.0)
37 * This class contains
38 * - abstraction functions for executing INSERT/UPDATE/DELETE/SELECT queries ("Query execution"; These are REQUIRED for all future connectivity to the database, thus ensuring DBAL compliance!)
39 * - functions for building SQL queries (INSERT/UPDATE/DELETE/SELECT) ("Query building"); These are transitional functions for building SQL queries in a more automated way. Use these to build queries instead of doing it manually in your code!
40 * - mysqli wrapper functions; These are transitional functions. By a simple search/replace you should be able to substitute all mysql*() calls with $GLOBALS['TYPO3_DB']->sql*() and your application will work out of the box. YOU CANNOT (legally) use any mysqli functions not found as wrapper functions in this class!
41 * See the Project Coding Guidelines (doc_core_cgl) for more instructions on best-practise
42 *
43 * This class is not in itself a complete database abstraction layer but can be extended to be a DBAL (by extensions, see "dbal" for example)
44 * ALL connectivity to the database in TYPO3 must be done through this class!
45 * The points of this class are:
46 * - To direct all database calls through this class so it becomes possible to implement DBAL with extensions.
47 * - To keep it very easy to use for developers used to MySQL in PHP - and preserve as much performance as possible when TYPO3 is used with MySQL directly...
48 * - To create an interface for DBAL implemented by extensions; (Eg. making possible escaping characters, clob/blob handling, reserved words handling)
49 * - Benchmarking the DB bottleneck queries will become much easier; Will make it easier to find optimization possibilities.
50 *
51 * USE:
52 * In all TYPO3 scripts the global variable $TYPO3_DB is an instance of this class. Use that.
53 * Eg. $GLOBALS['TYPO3_DB']->sql_fetch_assoc()
54 *
55 * @author Kasper Skårhøj <kasperYYYY@typo3.com>
56 */
57 class DatabaseConnection {
58
59 /**
60 * The AND constraint in where clause
61 *
62 * @var string
63 */
64 const AND_Constraint = 'AND';
65
66 /**
67 * The OR constraint in where clause
68 *
69 * @var string
70 */
71 const OR_Constraint = 'OR';
72
73 // Set "TRUE" or "1" if you want database errors outputted. Set to "2" if you also want successful database actions outputted.
74 /**
75 * @todo Define visibility
76 */
77 public $debugOutput = FALSE;
78
79 // Internally: Set to last built query (not necessarily executed...)
80 /**
81 * @todo Define visibility
82 */
83 public $debug_lastBuiltQuery = '';
84
85 // Set "TRUE" if you want the last built query to be stored in $debug_lastBuiltQuery independent of $this->debugOutput
86 /**
87 * @todo Define visibility
88 */
89 public $store_lastBuiltQuery = FALSE;
90
91 // Set this to 1 to get queries explained (devIPmask must match). Set the value to 2 to the same but disregarding the devIPmask.
92 // There is an alternative option to enable explain output in the admin panel under "TypoScript", which will produce much nicer output, but only works in FE.
93 /**
94 * @todo Define visibility
95 */
96 public $explainOutput = 0;
97
98 /**
99 * @var string Database host to connect to
100 */
101 protected $databaseHost = '';
102
103 /**
104 * @var integer Database port to connect to
105 */
106 protected $databasePort = 3306;
107
108 /**
109 * @var string|NULL Database socket to connect to
110 */
111 protected $databaseSocket = NULL;
112
113 /**
114 * @var string Database name to connect to
115 */
116 protected $databaseName = '';
117
118 /**
119 * @var string Database user to connect with
120 */
121 protected $databaseUsername = '';
122
123 /**
124 * @var string Database password to connect with
125 */
126 protected $databaseUserPassword = '';
127
128 /**
129 * @var boolean TRUE if database connection should be persistent
130 * @see http://php.net/manual/de/mysqli.persistconns.php
131 */
132 protected $persistentDatabaseConnection = FALSE;
133
134 /**
135 * @var boolean TRUE if connection between client and sql server is compressed
136 */
137 protected $connectionCompression = FALSE;
138
139 /**
140 * @var array List of commands executed after connection was established
141 */
142 protected $initializeCommandsAfterConnect = array();
143
144 /**
145 * @var boolean TRUE if database connection is established
146 */
147 protected $isConnected = FALSE;
148
149 /**
150 * @var \mysqli $link Default database link object
151 */
152 protected $link = NULL;
153
154 // Default character set, applies unless character set or collation are explicitly set
155 /**
156 * @todo Define visibility
157 */
158 public $default_charset = 'utf8';
159
160 /**
161 * @var array<PostProcessQueryHookInterface>
162 */
163 protected $preProcessHookObjects = array();
164
165 /**
166 * @var array<PreProcessQueryHookInterface>
167 */
168 protected $postProcessHookObjects = array();
169
170 /************************************
171 *
172 * Query execution
173 *
174 * These functions are the RECOMMENDED DBAL functions for use in your applications
175 * Using these functions will allow the DBAL to use alternative ways of accessing data (contrary to if a query is returned!)
176 * They compile a query AND execute it immediately and then return the result
177 * This principle heightens our ability to create various forms of DBAL of the functions.
178 * Generally: We want to return a result pointer/object, never queries.
179 * Also, having the table name together with the actual query execution allows us to direct the request to other databases.
180 *
181 **************************************/
182
183 /**
184 * Creates and executes an INSERT SQL-statement for $table from the array with field/value pairs $fields_values.
185 * Using this function specifically allows us to handle BLOB and CLOB fields depending on DB
186 *
187 * @param string $table Table name
188 * @param array $fields_values Field values as key=>value pairs. Values will be escaped internally. Typically you would fill an array like "$insertFields" with 'fieldname'=>'value' and pass it to this function as argument.
189 * @param boolean $no_quote_fields See fullQuoteArray()
190 * @return boolean|\mysqli_result|object MySQLi result object / DBAL object
191 */
192 public function exec_INSERTquery($table, $fields_values, $no_quote_fields = FALSE) {
193 if (!$this->isConnected) {
194 $this->connectDB();
195 }
196 $res = $this->link->query($this->INSERTquery($table, $fields_values, $no_quote_fields));
197 if ($this->debugOutput) {
198 $this->debug('exec_INSERTquery');
199 }
200 foreach ($this->postProcessHookObjects as $hookObject) {
201 /** @var $hookObject PostProcessQueryHookInterface */
202 $hookObject->exec_INSERTquery_postProcessAction($table, $fields_values, $no_quote_fields, $this);
203 }
204 return $res;
205 }
206
207 /**
208 * Creates and executes an INSERT SQL-statement for $table with multiple rows.
209 *
210 * @param string $table Table name
211 * @param array $fields Field names
212 * @param array $rows Table rows. Each row should be an array with field values mapping to $fields
213 * @param boolean $no_quote_fields See fullQuoteArray()
214 * @return boolean|\mysqli_result|object MySQLi result object / DBAL object
215 */
216 public function exec_INSERTmultipleRows($table, array $fields, array $rows, $no_quote_fields = FALSE) {
217 if (!$this->isConnected) {
218 $this->connectDB();
219 }
220 $res = $this->link->query($this->INSERTmultipleRows($table, $fields, $rows, $no_quote_fields));
221 if ($this->debugOutput) {
222 $this->debug('exec_INSERTmultipleRows');
223 }
224 foreach ($this->postProcessHookObjects as $hookObject) {
225 /** @var $hookObject PostProcessQueryHookInterface */
226 $hookObject->exec_INSERTmultipleRows_postProcessAction($table, $fields, $rows, $no_quote_fields, $this);
227 }
228 return $res;
229 }
230
231 /**
232 * Creates and executes an UPDATE SQL-statement for $table where $where-clause (typ. 'uid=...') from the array with field/value pairs $fields_values.
233 * Using this function specifically allow us to handle BLOB and CLOB fields depending on DB
234 *
235 * @param string $table Database tablename
236 * @param string $where WHERE clause, eg. "uid=1". NOTICE: You must escape values in this argument with $this->fullQuoteStr() yourself!
237 * @param array $fields_values Field values as key=>value pairs. Values will be escaped internally. Typically you would fill an array like "$updateFields" with 'fieldname'=>'value' and pass it to this function as argument.
238 * @param boolean $no_quote_fields See fullQuoteArray()
239 * @return boolean|\mysqli_result|object MySQLi result object / DBAL object
240 */
241 public function exec_UPDATEquery($table, $where, $fields_values, $no_quote_fields = FALSE) {
242 if (!$this->isConnected) {
243 $this->connectDB();
244 }
245 $res = $this->link->query($this->UPDATEquery($table, $where, $fields_values, $no_quote_fields));
246 if ($this->debugOutput) {
247 $this->debug('exec_UPDATEquery');
248 }
249 foreach ($this->postProcessHookObjects as $hookObject) {
250 /** @var $hookObject PostProcessQueryHookInterface */
251 $hookObject->exec_UPDATEquery_postProcessAction($table, $where, $fields_values, $no_quote_fields, $this);
252 }
253 return $res;
254 }
255
256 /**
257 * Creates and executes a DELETE SQL-statement for $table where $where-clause
258 *
259 * @param string $table Database tablename
260 * @param string $where WHERE clause, eg. "uid=1". NOTICE: You must escape values in this argument with $this->fullQuoteStr() yourself!
261 * @return boolean|\mysqli_result|object MySQLi result object / DBAL object
262 */
263 public function exec_DELETEquery($table, $where) {
264 if (!$this->isConnected) {
265 $this->connectDB();
266 }
267 $res = $this->link->query($this->DELETEquery($table, $where));
268 if ($this->debugOutput) {
269 $this->debug('exec_DELETEquery');
270 }
271 foreach ($this->postProcessHookObjects as $hookObject) {
272 /** @var $hookObject PostProcessQueryHookInterface */
273 $hookObject->exec_DELETEquery_postProcessAction($table, $where, $this);
274 }
275 return $res;
276 }
277
278 /**
279 * Creates and executes a SELECT SQL-statement
280 * Using this function specifically allow us to handle the LIMIT feature independently of DB.
281 *
282 * @param string $select_fields List of fields to select from the table. This is what comes right after "SELECT ...". Required value.
283 * @param string $from_table Table(s) from which to select. This is what comes right after "FROM ...". Required value.
284 * @param string $where_clause Additional WHERE clauses put in the end of the query. NOTICE: You must escape values in this argument with $this->fullQuoteStr() yourself! DO NOT PUT IN GROUP BY, ORDER BY or LIMIT!
285 * @param string $groupBy Optional GROUP BY field(s), if none, supply blank string.
286 * @param string $orderBy Optional ORDER BY field(s), if none, supply blank string.
287 * @param string $limit Optional LIMIT value ([begin,]max), if none, supply blank string.
288 * @return boolean|\mysqli_result|object MySQLi result object / DBAL object
289 */
290 public function exec_SELECTquery($select_fields, $from_table, $where_clause, $groupBy = '', $orderBy = '', $limit = '') {
291 if (!$this->isConnected) {
292 $this->connectDB();
293 }
294 $query = $this->SELECTquery($select_fields, $from_table, $where_clause, $groupBy, $orderBy, $limit);
295 $res = $this->link->query($query);
296 if ($this->debugOutput) {
297 $this->debug('exec_SELECTquery');
298 }
299 if ($this->explainOutput) {
300 $this->explain($query, $from_table, $res->num_rows);
301 }
302 foreach ($this->postProcessHookObjects as $hookObject) {
303 /** @var $hookObject PostProcessQueryHookInterface */
304 $hookObject->exec_SELECTquery_postProcessAction($select_fields, $from_table, $where_clause, $groupBy = '', $orderBy = '', $limit = '', $this);
305 }
306 return $res;
307 }
308
309 /**
310 * Creates and executes a SELECT query, selecting fields ($select) from two/three tables joined
311 * Use $mm_table together with $local_table or $foreign_table to select over two tables. Or use all three tables to select the full MM-relation.
312 * The JOIN is done with [$local_table].uid <--> [$mm_table].uid_local / [$mm_table].uid_foreign <--> [$foreign_table].uid
313 * The function is very useful for selecting MM-relations between tables adhering to the MM-format used by TCE (TYPO3 Core Engine). See the section on $GLOBALS['TCA'] in Inside TYPO3 for more details.
314 *
315 * @param string $select Field list for SELECT
316 * @param string $local_table Tablename, local table
317 * @param string $mm_table Tablename, relation table
318 * @param string $foreign_table Tablename, foreign table
319 * @param string $whereClause Optional additional WHERE clauses put in the end of the query. NOTICE: You must escape values in this argument with $this->fullQuoteStr() yourself! DO NOT PUT IN GROUP BY, ORDER BY or LIMIT! You have to prepend 'AND ' to this parameter yourself!
320 * @param string $groupBy Optional GROUP BY field(s), if none, supply blank string.
321 * @param string $orderBy Optional ORDER BY field(s), if none, supply blank string.
322 * @param string $limit Optional LIMIT value ([begin,]max), if none, supply blank string.
323 * @return boolean|\mysqli_result|object MySQLi result object / DBAL object
324 * @see exec_SELECTquery()
325 */
326 public function exec_SELECT_mm_query($select, $local_table, $mm_table, $foreign_table, $whereClause = '', $groupBy = '', $orderBy = '', $limit = '') {
327 if ($foreign_table == $local_table) {
328 $foreign_table_as = $foreign_table . uniqid('_join');
329 }
330 $mmWhere = $local_table ? $local_table . '.uid=' . $mm_table . '.uid_local' : '';
331 $mmWhere .= ($local_table and $foreign_table) ? ' AND ' : '';
332 $tables = ($local_table ? $local_table . ',' : '') . $mm_table;
333 if ($foreign_table) {
334 $mmWhere .= ($foreign_table_as ? $foreign_table_as : $foreign_table) . '.uid=' . $mm_table . '.uid_foreign';
335 $tables .= ',' . $foreign_table . ($foreign_table_as ? ' AS ' . $foreign_table_as : '');
336 }
337 return $this->exec_SELECTquery($select, $tables, $mmWhere . ' ' . $whereClause, $groupBy, $orderBy, $limit);
338 }
339
340 /**
341 * Executes a select based on input query parts array
342 *
343 * @param array $queryParts Query parts array
344 * @return boolean|\mysqli_result|object MySQLi result object / DBAL object
345 * @see exec_SELECTquery()
346 */
347 public function exec_SELECT_queryArray($queryParts) {
348 return $this->exec_SELECTquery($queryParts['SELECT'], $queryParts['FROM'], $queryParts['WHERE'], $queryParts['GROUPBY'], $queryParts['ORDERBY'], $queryParts['LIMIT']);
349 }
350
351 /**
352 * Creates and executes a SELECT SQL-statement AND traverse result set and returns array with records in.
353 *
354 * @param string $select_fields See exec_SELECTquery()
355 * @param string $from_table See exec_SELECTquery()
356 * @param string $where_clause See exec_SELECTquery()
357 * @param string $groupBy See exec_SELECTquery()
358 * @param string $orderBy See exec_SELECTquery()
359 * @param string $limit See exec_SELECTquery()
360 * @param string $uidIndexField If set, the result array will carry this field names value as index. Requires that field to be selected of course!
361 * @return array|NULL Array of rows, or NULL in case of SQL error
362 */
363 public function exec_SELECTgetRows($select_fields, $from_table, $where_clause, $groupBy = '', $orderBy = '', $limit = '', $uidIndexField = '') {
364 $res = $this->exec_SELECTquery($select_fields, $from_table, $where_clause, $groupBy, $orderBy, $limit);
365 if ($this->debugOutput) {
366 $this->debug('exec_SELECTquery');
367 }
368 if (!$this->sql_error()) {
369 $output = array();
370 if ($uidIndexField) {
371 while ($tempRow = $this->sql_fetch_assoc($res)) {
372 $output[$tempRow[$uidIndexField]] = $tempRow;
373 }
374 } else {
375 while ($output[] = $this->sql_fetch_assoc($res)) {
376
377 }
378 array_pop($output);
379 }
380 $this->sql_free_result($res);
381 } else {
382 $output = NULL;
383 }
384 return $output;
385 }
386
387 /**
388 * Creates and executes a SELECT SQL-statement AND gets a result set and returns an array with a single record in.
389 * LIMIT is automatically set to 1 and can not be overridden.
390 *
391 * @param string $select_fields List of fields to select from the table.
392 * @param string $from_table Table(s) from which to select.
393 * @param string $where_clause Optional additional WHERE clauses put in the end of the query. NOTICE: You must escape values in this argument with $this->fullQuoteStr() yourself!
394 * @param string $groupBy Optional GROUP BY field(s), if none, supply blank string.
395 * @param string $orderBy Optional ORDER BY field(s), if none, supply blank string.
396 * @param boolean $numIndex If set, the result will be fetched with sql_fetch_row, otherwise sql_fetch_assoc will be used.
397 * @return array Single row or NULL if it fails.
398 */
399 public function exec_SELECTgetSingleRow($select_fields, $from_table, $where_clause, $groupBy = '', $orderBy = '', $numIndex = FALSE) {
400 $res = $this->exec_SELECTquery($select_fields, $from_table, $where_clause, $groupBy, $orderBy, '1');
401 if ($this->debugOutput) {
402 $this->debug('exec_SELECTquery');
403 }
404 $output = NULL;
405 if ($res !== FALSE) {
406 if ($numIndex) {
407 $output = $this->sql_fetch_row($res);
408 } else {
409 $output = $this->sql_fetch_assoc($res);
410 }
411 $this->sql_free_result($res);
412 }
413 return $output;
414 }
415
416 /**
417 * Counts the number of rows in a table.
418 *
419 * @param string $field Name of the field to use in the COUNT() expression (e.g. '*')
420 * @param string $table Name of the table to count rows for
421 * @param string $where (optional) WHERE statement of the query
422 * @return mixed Number of rows counter (integer) or FALSE if something went wrong (boolean)
423 */
424 public function exec_SELECTcountRows($field, $table, $where = '') {
425 $count = FALSE;
426 $resultSet = $this->exec_SELECTquery('COUNT(' . $field . ')', $table, $where);
427 if ($resultSet !== FALSE) {
428 list($count) = $this->sql_fetch_row($resultSet);
429 $count = intval($count);
430 $this->sql_free_result($resultSet);
431 }
432 return $count;
433 }
434
435 /**
436 * Truncates a table.
437 *
438 * @param string $table Database tablename
439 * @return mixed Result from handler
440 */
441 public function exec_TRUNCATEquery($table) {
442 if (!$this->isConnected) {
443 $this->connectDB();
444 }
445 $res = $this->link->query($this->TRUNCATEquery($table));
446 if ($this->debugOutput) {
447 $this->debug('exec_TRUNCATEquery');
448 }
449 foreach ($this->postProcessHookObjects as $hookObject) {
450 /** @var $hookObject PostProcessQueryHookInterface */
451 $hookObject->exec_TRUNCATEquery_postProcessAction($table, $this);
452 }
453 return $res;
454 }
455
456 /**************************************
457 *
458 * Query building
459 *
460 **************************************/
461 /**
462 * Creates an INSERT SQL-statement for $table from the array with field/value pairs $fields_values.
463 *
464 * @param string $table See exec_INSERTquery()
465 * @param array $fields_values See exec_INSERTquery()
466 * @param boolean $no_quote_fields See fullQuoteArray()
467 * @return string Full SQL query for INSERT (unless $fields_values does not contain any elements in which case it will be FALSE)
468 */
469 public function INSERTquery($table, $fields_values, $no_quote_fields = FALSE) {
470 // Table and fieldnames should be "SQL-injection-safe" when supplied to this
471 // function (contrary to values in the arrays which may be insecure).
472 if (is_array($fields_values) && count($fields_values)) {
473 foreach ($this->preProcessHookObjects as $hookObject) {
474 $hookObject->INSERTquery_preProcessAction($table, $fields_values, $no_quote_fields, $this);
475 }
476 // Quote and escape values
477 $fields_values = $this->fullQuoteArray($fields_values, $table, $no_quote_fields);
478 // Build query
479 $query = 'INSERT INTO ' . $table . ' (' . implode(',', array_keys($fields_values)) . ') VALUES ' . '(' . implode(',', $fields_values) . ')';
480 // Return query
481 if ($this->debugOutput || $this->store_lastBuiltQuery) {
482 $this->debug_lastBuiltQuery = $query;
483 }
484 return $query;
485 }
486 }
487
488 /**
489 * Creates an INSERT SQL-statement for $table with multiple rows.
490 *
491 * @param string $table Table name
492 * @param array $fields Field names
493 * @param array $rows Table rows. Each row should be an array with field values mapping to $fields
494 * @param boolean $no_quote_fields See fullQuoteArray()
495 * @return string Full SQL query for INSERT (unless $rows does not contain any elements in which case it will be FALSE)
496 */
497 public function INSERTmultipleRows($table, array $fields, array $rows, $no_quote_fields = FALSE) {
498 // Table and fieldnames should be "SQL-injection-safe" when supplied to this
499 // function (contrary to values in the arrays which may be insecure).
500 if (count($rows)) {
501 foreach ($this->preProcessHookObjects as $hookObject) {
502 /** @var $hookObject PreProcessQueryHookInterface */
503 $hookObject->INSERTmultipleRows_preProcessAction($table, $fields, $rows, $no_quote_fields, $this);
504 }
505 // Build query
506 $query = 'INSERT INTO ' . $table . ' (' . implode(', ', $fields) . ') VALUES ';
507 $rowSQL = array();
508 foreach ($rows as $row) {
509 // Quote and escape values
510 $row = $this->fullQuoteArray($row, $table, $no_quote_fields);
511 $rowSQL[] = '(' . implode(', ', $row) . ')';
512 }
513 $query .= implode(', ', $rowSQL);
514 // Return query
515 if ($this->debugOutput || $this->store_lastBuiltQuery) {
516 $this->debug_lastBuiltQuery = $query;
517 }
518 return $query;
519 }
520 }
521
522 /**
523 * Creates an UPDATE SQL-statement for $table where $where-clause (typ. 'uid=...') from the array with field/value pairs $fields_values.
524 *
525 *
526 * @param string $table See exec_UPDATEquery()
527 * @param string $where See exec_UPDATEquery()
528 * @param array $fields_values See exec_UPDATEquery()
529 * @param boolean $no_quote_fields
530 * @throws \InvalidArgumentException
531 * @return string Full SQL query for UPDATE
532 */
533 public function UPDATEquery($table, $where, $fields_values, $no_quote_fields = FALSE) {
534 // Table and fieldnames should be "SQL-injection-safe" when supplied to this
535 // function (contrary to values in the arrays which may be insecure).
536 if (is_string($where)) {
537 foreach ($this->preProcessHookObjects as $hookObject) {
538 /** @var $hookObject PreProcessQueryHookInterface */
539 $hookObject->UPDATEquery_preProcessAction($table, $where, $fields_values, $no_quote_fields, $this);
540 }
541 $fields = array();
542 if (is_array($fields_values) && count($fields_values)) {
543 // Quote and escape values
544 $nArr = $this->fullQuoteArray($fields_values, $table, $no_quote_fields, TRUE);
545 foreach ($nArr as $k => $v) {
546 $fields[] = $k . '=' . $v;
547 }
548 }
549 // Build query
550 $query = 'UPDATE ' . $table . ' SET ' . implode(',', $fields) . (strlen($where) > 0 ? ' WHERE ' . $where : '');
551 if ($this->debugOutput || $this->store_lastBuiltQuery) {
552 $this->debug_lastBuiltQuery = $query;
553 }
554 return $query;
555 } else {
556 throw new \InvalidArgumentException('TYPO3 Fatal Error: "Where" clause argument for UPDATE query was not a string in $this->UPDATEquery() !', 1270853880);
557 }
558 }
559
560 /**
561 * Creates a DELETE SQL-statement for $table where $where-clause
562 *
563 * @param string $table See exec_DELETEquery()
564 * @param string $where See exec_DELETEquery()
565 * @return string Full SQL query for DELETE
566 * @throws \InvalidArgumentException
567 */
568 public function DELETEquery($table, $where) {
569 if (is_string($where)) {
570 foreach ($this->preProcessHookObjects as $hookObject) {
571 /** @var $hookObject PreProcessQueryHookInterface */
572 $hookObject->DELETEquery_preProcessAction($table, $where, $this);
573 }
574 // Table and fieldnames should be "SQL-injection-safe" when supplied to this function
575 $query = 'DELETE FROM ' . $table . (strlen($where) > 0 ? ' WHERE ' . $where : '');
576 if ($this->debugOutput || $this->store_lastBuiltQuery) {
577 $this->debug_lastBuiltQuery = $query;
578 }
579 return $query;
580 } else {
581 throw new \InvalidArgumentException('TYPO3 Fatal Error: "Where" clause argument for DELETE query was not a string in $this->DELETEquery() !', 1270853881);
582 }
583 }
584
585 /**
586 * Creates a SELECT SQL-statement
587 *
588 * @param string $select_fields See exec_SELECTquery()
589 * @param string $from_table See exec_SELECTquery()
590 * @param string $where_clause See exec_SELECTquery()
591 * @param string $groupBy See exec_SELECTquery()
592 * @param string $orderBy See exec_SELECTquery()
593 * @param string $limit See exec_SELECTquery()
594 * @return string Full SQL query for SELECT
595 */
596 public function SELECTquery($select_fields, $from_table, $where_clause, $groupBy = '', $orderBy = '', $limit = '') {
597 foreach ($this->preProcessHookObjects as $hookObject) {
598 /** @var $hookObject PreProcessQueryHookInterface */
599 $hookObject->SELECTquery_preProcessAction($select_fields, $from_table, $where_clause, $groupBy, $orderBy, $limit, $this);
600 }
601 // Table and fieldnames should be "SQL-injection-safe" when supplied to this function
602 // Build basic query
603 $query = 'SELECT ' . $select_fields . ' FROM ' . $from_table . (strlen($where_clause) > 0 ? ' WHERE ' . $where_clause : '');
604 // Group by
605 $query .= strlen($groupBy) > 0 ? ' GROUP BY ' . $groupBy : '';
606 // Order by
607 $query .= strlen($orderBy) > 0 ? ' ORDER BY ' . $orderBy : '';
608 // Group by
609 $query .= strlen($limit) > 0 ? ' LIMIT ' . $limit : '';
610 // Return query
611 if ($this->debugOutput || $this->store_lastBuiltQuery) {
612 $this->debug_lastBuiltQuery = $query;
613 }
614 return $query;
615 }
616
617 /**
618 * Creates a SELECT SQL-statement to be used as subquery within another query.
619 * BEWARE: This method should not be overriden within DBAL to prevent quoting from happening.
620 *
621 * @param string $select_fields List of fields to select from the table.
622 * @param string $from_table Table from which to select.
623 * @param string $where_clause Conditional WHERE statement
624 * @return string Full SQL query for SELECT
625 */
626 public function SELECTsubquery($select_fields, $from_table, $where_clause) {
627 // Table and fieldnames should be "SQL-injection-safe" when supplied to this function
628 // Build basic query:
629 $query = 'SELECT ' . $select_fields . ' FROM ' . $from_table . (strlen($where_clause) > 0 ? ' WHERE ' . $where_clause : '');
630 // Return query
631 if ($this->debugOutput || $this->store_lastBuiltQuery) {
632 $this->debug_lastBuiltQuery = $query;
633 }
634 return $query;
635 }
636
637 /**
638 * Creates a TRUNCATE TABLE SQL-statement
639 *
640 * @param string $table See exec_TRUNCATEquery()
641 * @return string Full SQL query for TRUNCATE TABLE
642 */
643 public function TRUNCATEquery($table) {
644 foreach ($this->preProcessHookObjects as $hookObject) {
645 /** @var $hookObject PreProcessQueryHookInterface */
646 $hookObject->TRUNCATEquery_preProcessAction($table, $this);
647 }
648 // Table should be "SQL-injection-safe" when supplied to this function
649 // Build basic query:
650 $query = 'TRUNCATE TABLE ' . $table;
651 // Return query:
652 if ($this->debugOutput || $this->store_lastBuiltQuery) {
653 $this->debug_lastBuiltQuery = $query;
654 }
655 return $query;
656 }
657
658 /**
659 * Returns a WHERE clause that can find a value ($value) in a list field ($field)
660 * For instance a record in the database might contain a list of numbers,
661 * "34,234,5" (with no spaces between). This query would be able to select that
662 * record based on the value "34", "234" or "5" regardless of their position in
663 * the list (left, middle or right).
664 * The value must not contain a comma (,)
665 * Is nice to look up list-relations to records or files in TYPO3 database tables.
666 *
667 * @param string $field Field name
668 * @param string $value Value to find in list
669 * @param string $table Table in which we are searching (for DBAL detection of quoteStr() method)
670 * @throws \InvalidArgumentException
671 * @return string WHERE clause for a query
672 */
673 public function listQuery($field, $value, $table) {
674 $value = (string) $value;
675 if (strpos(',', $value) !== FALSE) {
676 throw new \InvalidArgumentException('$value must not contain a comma (,) in $this->listQuery() !', 1294585862);
677 }
678 $pattern = $this->quoteStr($value, $table);
679 $where = 'FIND_IN_SET(\'' . $pattern . '\',' . $field . ')';
680 return $where;
681 }
682
683 /**
684 * Returns a WHERE clause which will make an AND or OR search for the words in the $searchWords array in any of the fields in array $fields.
685 *
686 * @param array $searchWords Array of search words
687 * @param array $fields Array of fields
688 * @param string $table Table in which we are searching (for DBAL detection of quoteStr() method)
689 * @param string $constraint How multiple search words have to match ('AND' or 'OR')
690 * @return string WHERE clause for search
691 */
692 public function searchQuery($searchWords, $fields, $table, $constraint = self::AND_Constraint) {
693 switch ($constraint) {
694 case self::OR_Constraint:
695 $constraint = 'OR';
696 break;
697 default:
698 $constraint = 'AND';
699 break;
700 }
701
702 $queryParts = array();
703 foreach ($searchWords as $sw) {
704 $like = ' LIKE \'%' . $this->quoteStr($sw, $table) . '%\'';
705 $queryParts[] = $table . '.' . implode(($like . ' OR ' . $table . '.'), $fields) . $like;
706 }
707 $query = '(' . implode(') ' . $constraint . ' (', $queryParts) . ')';
708
709 return $query;
710 }
711
712 /**************************************
713 *
714 * Prepared Query Support
715 *
716 **************************************/
717 /**
718 * Creates a SELECT prepared SQL statement.
719 *
720 * @param string $select_fields See exec_SELECTquery()
721 * @param string $from_table See exec_SELECTquery()
722 * @param string $where_clause See exec_SELECTquery()
723 * @param string $groupBy See exec_SELECTquery()
724 * @param string $orderBy See exec_SELECTquery()
725 * @param string $limit See exec_SELECTquery()
726 * @param array $input_parameters An array of values with as many elements as there are bound parameters in the SQL statement being executed. All values are treated as \TYPO3\CMS\Core\Database\PreparedStatement::PARAM_AUTOTYPE.
727 * @return \TYPO3\CMS\Core\Database\PreparedStatement Prepared statement
728 */
729 public function prepare_SELECTquery($select_fields, $from_table, $where_clause, $groupBy = '', $orderBy = '', $limit = '', array $input_parameters = array()) {
730 $query = $this->SELECTquery($select_fields, $from_table, $where_clause, $groupBy, $orderBy, $limit);
731 /** @var $preparedStatement \TYPO3\CMS\Core\Database\PreparedStatement */
732 $preparedStatement = \TYPO3\CMS\Core\Utility\GeneralUtility::makeInstance('TYPO3\\CMS\\Core\\Database\\PreparedStatement', $query, $from_table, array());
733 // Bind values to parameters
734 foreach ($input_parameters as $key => $value) {
735 $preparedStatement->bindValue($key, $value, \TYPO3\CMS\Core\Database\PreparedStatement::PARAM_AUTOTYPE);
736 }
737 // Return prepared statement
738 return $preparedStatement;
739 }
740
741 /**
742 * Creates a SELECT prepared SQL statement based on input query parts array
743 *
744 * @param array $queryParts Query parts array
745 * @param array $input_parameters An array of values with as many elements as there are bound parameters in the SQL statement being executed. All values are treated as \TYPO3\CMS\Core\Database\PreparedStatement::PARAM_AUTOTYPE.
746 * @return \TYPO3\CMS\Core\Database\PreparedStatement Prepared statement
747 */
748 public function prepare_SELECTqueryArray(array $queryParts, array $input_parameters = array()) {
749 return $this->prepare_SELECTquery($queryParts['SELECT'], $queryParts['FROM'], $queryParts['WHERE'], $queryParts['GROUPBY'], $queryParts['ORDERBY'], $queryParts['LIMIT'], $input_parameters);
750 }
751
752 /**
753 * Executes a prepared query.
754 * This method may only be called by \TYPO3\CMS\Core\Database\PreparedStatement
755 *
756 * @param string $query The query to execute
757 * @param array $queryComponents The components of the query to execute
758 * @return boolean|\mysqli_result|object MySQLi result object / DBAL object
759 */
760 public function exec_PREPAREDquery($query, array $queryComponents) {
761 if (!$this->isConnected) {
762 $this->connectDB();
763 }
764 $res = $this->link->query($query);
765 if ($this->debugOutput) {
766 $this->debug('stmt_execute', $query);
767 }
768 return $res;
769 }
770
771 /**************************************
772 *
773 * Various helper functions
774 *
775 * Functions recommended to be used for
776 * - escaping values,
777 * - cleaning lists of values,
778 * - stripping of excess ORDER BY/GROUP BY keywords
779 *
780 **************************************/
781 /**
782 * Escaping and quoting values for SQL statements.
783 *
784 * @param string $str Input string
785 * @param string $table Table name for which to quote string. Just enter the table that the field-value is selected from (and any DBAL will look up which handler to use and then how to quote the string!).
786 * @param boolean $allowNull Whether to allow NULL values
787 * @return string Output string; Wrapped in single quotes and quotes in the string (" / ') and \ will be backslashed (or otherwise based on DBAL handler)
788 * @see quoteStr()
789 */
790 public function fullQuoteStr($str, $table, $allowNull = FALSE) {
791 if (!$this->isConnected) {
792 $this->connectDB();
793 }
794 if ($allowNull && $str === NULL) {
795 return 'NULL';
796 }
797
798 return '\'' . $this->link->real_escape_string($str) . '\'';
799 }
800
801 /**
802 * Will fullquote all values in the one-dimensional array so they are ready to "implode" for an sql query.
803 *
804 * @param array $arr Array with values (either associative or non-associative array)
805 * @param string $table Table name for which to quote
806 * @param boolean|array $noQuote List/array of keys NOT to quote (eg. SQL functions) - ONLY for associative arrays
807 * @param boolean $allowNull Whether to allow NULL values
808 * @return array The input array with the values quoted
809 * @see cleanIntArray()
810 */
811 public function fullQuoteArray($arr, $table, $noQuote = FALSE, $allowNull = FALSE) {
812 if (is_string($noQuote)) {
813 $noQuote = explode(',', $noQuote);
814 } elseif (!is_array($noQuote)) {
815 $noQuote = FALSE;
816 }
817 foreach ($arr as $k => $v) {
818 if ($noQuote === FALSE || !in_array($k, $noQuote)) {
819 $arr[$k] = $this->fullQuoteStr($v, $table, $allowNull);
820 }
821 }
822 return $arr;
823 }
824
825 /**
826 * Substitution for PHP function "addslashes()"
827 * Use this function instead of the PHP addslashes() function when you build queries - this will prepare your code for DBAL.
828 * NOTICE: You must wrap the output of this function in SINGLE QUOTES to be DBAL compatible. Unless you have to apply the single quotes yourself you should rather use ->fullQuoteStr()!
829 *
830 * @param string $str Input string
831 * @param string $table Table name for which to quote string. Just enter the table that the field-value is selected from (and any DBAL will look up which handler to use and then how to quote the string!).
832 * @return string Output string; Quotes (" / ') and \ will be backslashed (or otherwise based on DBAL handler)
833 * @see quoteStr()
834 */
835 public function quoteStr($str, $table) {
836 if (!$this->isConnected) {
837 $this->connectDB();
838 }
839 return $this->link->real_escape_string($str);
840 }
841
842 /**
843 * Escaping values for SQL LIKE statements.
844 *
845 * @param string $str Input string
846 * @param string $table Table name for which to escape string. Just enter the table that the field-value is selected from (and any DBAL will look up which handler to use and then how to quote the string!).
847 * @return string Output string; % and _ will be escaped with \ (or otherwise based on DBAL handler)
848 * @see quoteStr()
849 */
850 public function escapeStrForLike($str, $table) {
851 return addcslashes($str, '_%');
852 }
853
854 /**
855 * Will convert all values in the one-dimensional array to integers.
856 * Useful when you want to make sure an array contains only integers before imploding them in a select-list.
857 *
858 * @param array $arr Array with values
859 * @return array The input array with all values passed through intval()
860 * @see cleanIntList()
861 */
862 public function cleanIntArray($arr) {
863 foreach ($arr as $k => $v) {
864 $arr[$k] = intval($arr[$k]);
865 }
866 return $arr;
867 }
868
869 /**
870 * Will force all entries in the input comma list to integers
871 * Useful when you want to make sure a commalist of supposed integers really contain only integers; You want to know that when you don't trust content that could go into an SQL statement.
872 *
873 * @param string $list List of comma-separated values which should be integers
874 * @return string The input list but with every value passed through intval()
875 * @see cleanIntArray()
876 */
877 public function cleanIntList($list) {
878 return implode(',', \TYPO3\CMS\Core\Utility\GeneralUtility::intExplode(',', $list));
879 }
880
881 /**
882 * Removes the prefix "ORDER BY" from the input string.
883 * This function is used when you call the exec_SELECTquery() function and want to pass the ORDER BY parameter by can't guarantee that "ORDER BY" is not prefixed.
884 * Generally; This function provides a work-around to the situation where you cannot pass only the fields by which to order the result.
885 *
886 * @param string $str eg. "ORDER BY title, uid
887 * @return string eg. "title, uid
888 * @see exec_SELECTquery(), stripGroupBy()
889 */
890 public function stripOrderBy($str) {
891 return preg_replace('/^(?:ORDER[[:space:]]*BY[[:space:]]*)+/i', '', trim($str));
892 }
893
894 /**
895 * Removes the prefix "GROUP BY" from the input string.
896 * This function is used when you call the SELECTquery() function and want to pass the GROUP BY parameter by can't guarantee that "GROUP BY" is not prefixed.
897 * Generally; This function provides a work-around to the situation where you cannot pass only the fields by which to order the result.
898 *
899 * @param string $str eg. "GROUP BY title, uid
900 * @return string eg. "title, uid
901 * @see exec_SELECTquery(), stripOrderBy()
902 */
903 public function stripGroupBy($str) {
904 return preg_replace('/^(?:GROUP[[:space:]]*BY[[:space:]]*)+/i', '', trim($str));
905 }
906
907 /**
908 * Takes the last part of a query, eg. "... uid=123 GROUP BY title ORDER BY title LIMIT 5,2" and splits each part into a table (WHERE, GROUPBY, ORDERBY, LIMIT)
909 * Work-around function for use where you know some userdefined end to an SQL clause is supplied and you need to separate these factors.
910 *
911 * @param string $str Input string
912 * @return array
913 */
914 public function splitGroupOrderLimit($str) {
915 // Prepending a space to make sure "[[:space:]]+" will find a space there
916 // for the first element.
917 $str = ' ' . $str;
918 // Init output array:
919 $wgolParts = array(
920 'WHERE' => '',
921 'GROUPBY' => '',
922 'ORDERBY' => '',
923 'LIMIT' => ''
924 );
925 // Find LIMIT
926 $reg = array();
927 if (preg_match('/^(.*)[[:space:]]+LIMIT[[:space:]]+([[:alnum:][:space:],._]+)$/i', $str, $reg)) {
928 $wgolParts['LIMIT'] = trim($reg[2]);
929 $str = $reg[1];
930 }
931 // Find ORDER BY
932 $reg = array();
933 if (preg_match('/^(.*)[[:space:]]+ORDER[[:space:]]+BY[[:space:]]+([[:alnum:][:space:],._]+)$/i', $str, $reg)) {
934 $wgolParts['ORDERBY'] = trim($reg[2]);
935 $str = $reg[1];
936 }
937 // Find GROUP BY
938 $reg = array();
939 if (preg_match('/^(.*)[[:space:]]+GROUP[[:space:]]+BY[[:space:]]+([[:alnum:][:space:],._]+)$/i', $str, $reg)) {
940 $wgolParts['GROUPBY'] = trim($reg[2]);
941 $str = $reg[1];
942 }
943 // Rest is assumed to be "WHERE" clause
944 $wgolParts['WHERE'] = $str;
945 return $wgolParts;
946 }
947
948 /**
949 * Returns the date and time formats compatible with the given database table.
950 *
951 * @param string $table Table name for which to return an empty date. Just enter the table that the field-value is selected from (and any DBAL will look up which handler to use and then how date and time should be formatted).
952 * @return array
953 */
954 public function getDateTimeFormats($table) {
955 return array(
956 'date' => array(
957 'empty' => '0000-00-00',
958 'format' => 'Y-m-d'
959 ),
960 'datetime' => array(
961 'empty' => '0000-00-00 00:00:00',
962 'format' => 'Y-m-d H:i:s'
963 )
964 );
965 }
966
967 /**************************************
968 *
969 * MySQL(i) wrapper functions
970 * (For use in your applications)
971 *
972 **************************************/
973 /**
974 * Executes query
975 * MySQLi query() wrapper function
976 * Beware: Use of this method should be avoided as it is experimentally supported by DBAL. You should consider
977 * using exec_SELECTquery() and similar methods instead.
978 *
979 * @param string $query Query to execute
980 * @return boolean|\mysqli_result|object MySQLi result object / DBAL object
981 */
982 public function sql_query($query) {
983 if (!$this->isConnected) {
984 $this->connectDB();
985 }
986 $res = $this->link->query($query);
987 if ($this->debugOutput) {
988 $this->debug('sql_query', $query);
989 }
990 return $res;
991 }
992
993 /**
994 * Returns the error status on the last query() execution
995 *
996 * @return string MySQLi error string.
997 */
998 public function sql_error() {
999 return $this->link->error;
1000 }
1001
1002 /**
1003 * Returns the error number on the last query() execution
1004 *
1005 * @return integer MySQLi error number
1006 */
1007 public function sql_errno() {
1008 return $this->link->errno;
1009 }
1010
1011 /**
1012 * Returns the number of selected rows.
1013 *
1014 * @param boolean|\mysqli_result|object $res MySQLi result object / DBAL object
1015 * @return integer Number of resulting rows
1016 */
1017 public function sql_num_rows($res) {
1018 if ($this->debug_check_recordset($res)) {
1019 return $res->num_rows;
1020 } else {
1021 return FALSE;
1022 }
1023 }
1024
1025 /**
1026 * Returns an associative array that corresponds to the fetched row, or FALSE if there are no more rows.
1027 * MySQLi fetch_assoc() wrapper function
1028 *
1029 * @param boolean|\mysqli_result|object $res MySQLi result object / DBAL object
1030 * @return array|boolean Associative array of result row.
1031 */
1032 public function sql_fetch_assoc($res) {
1033 if ($this->debug_check_recordset($res)) {
1034 $result = $res->fetch_assoc();
1035 if ($result === NULL) {
1036 // Needed for compatibility
1037 $result = FALSE;
1038 }
1039 return $result;
1040 } else {
1041 return FALSE;
1042 }
1043 }
1044
1045 /**
1046 * Returns an array that corresponds to the fetched row, or FALSE if there are no more rows.
1047 * The array contains the values in numerical indices.
1048 * MySQLi fetch_row() wrapper function
1049 *
1050 * @param boolean|\mysqli_result|object $res MySQLi result object / DBAL object
1051 * @return array|boolean Array with result rows.
1052 */
1053 public function sql_fetch_row($res) {
1054 if ($this->debug_check_recordset($res)) {
1055 $result = $res->fetch_row();
1056 if ($result === NULL) {
1057 // Needed for compatibility
1058 $result = FALSE;
1059 }
1060 return $result;
1061 } else {
1062 return FALSE;
1063 }
1064 }
1065
1066 /**
1067 * Free result memory
1068 * free_result() wrapper function
1069 *
1070 * @param boolean|\mysqli_result|object $res MySQLi result object / DBAL object
1071 * @return boolean Returns TRUE on success or FALSE on failure.
1072 */
1073 public function sql_free_result($res) {
1074 if ($this->debug_check_recordset($res)) {
1075 return $res->free();
1076 } else {
1077 return FALSE;
1078 }
1079 }
1080
1081 /**
1082 * Get the ID generated from the previous INSERT operation
1083 *
1084 * @return integer The uid of the last inserted record.
1085 */
1086 public function sql_insert_id() {
1087 return $this->link->insert_id;
1088 }
1089
1090 /**
1091 * Returns the number of rows affected by the last INSERT, UPDATE or DELETE query
1092 *
1093 * @return integer Number of rows affected by last query
1094 */
1095 public function sql_affected_rows() {
1096 return $this->link->affected_rows;
1097 }
1098
1099 /**
1100 * Move internal result pointer
1101 *
1102 * @param boolean|\mysqli_result|object $res MySQLi result object / DBAL object
1103 * @param integer $seek Seek result number.
1104 * @return boolean Returns TRUE on success or FALSE on failure.
1105 */
1106 public function sql_data_seek($res, $seek) {
1107 if ($this->debug_check_recordset($res)) {
1108 return $res->data_seek($seek);
1109 } else {
1110 return FALSE;
1111 }
1112 }
1113
1114 /**
1115 * Get the type of the specified field in a result
1116 * mysql_field_type() wrapper function
1117 *
1118 * @param boolean|\mysqli_result|object $res MySQLi result object / DBAL object
1119 * @param integer $pointer Field index.
1120 * @return string Returns the name of the specified field index, or FALSE on error
1121 */
1122 public function sql_field_type($res, $pointer) {
1123 // mysql_field_type compatibility map
1124 // taken from: http://www.php.net/manual/en/mysqli-result.fetch-field-direct.php#89117
1125 // Constant numbers see http://php.net/manual/en/mysqli.constants.php
1126 $mysql_data_type_hash = array(
1127 1=>'tinyint',
1128 2=>'smallint',
1129 3=>'int',
1130 4=>'float',
1131 5=>'double',
1132 7=>'timestamp',
1133 8=>'bigint',
1134 9=>'mediumint',
1135 10=>'date',
1136 11=>'time',
1137 12=>'datetime',
1138 13=>'year',
1139 16=>'bit',
1140 //252 is currently mapped to all text and blob types (MySQL 5.0.51a)
1141 253=>'varchar',
1142 254=>'char',
1143 246=>'decimal'
1144 );
1145 if ($this->debug_check_recordset($res)) {
1146 $metaInfo = $res->fetch_field_direct($pointer);
1147 if ($metaInfo === FALSE) {
1148 return FALSE;
1149 }
1150 return $mysql_data_type_hash[$metaInfo->type];
1151 } else {
1152 return FALSE;
1153 }
1154 }
1155
1156 /**
1157 * Open a (persistent) connection to a MySQL server
1158 *
1159 * @param string $host Deprecated since 6.1, will be removed in two versions. Database host IP/domain[:port]
1160 * @param string $username Deprecated since 6.1, will be removed in two versions. Username to connect with.
1161 * @param string $password Deprecated since 6.1, will be removed in two versions. Password to connect with.
1162 * @return boolean|void
1163 * @throws \RuntimeException
1164 */
1165 public function sql_pconnect($host = NULL, $username = NULL, $password = NULL) {
1166 if ($this->isConnected) {
1167 return $this->link;
1168 }
1169
1170 if (!extension_loaded('mysqli')) {
1171 throw new \RuntimeException(
1172 'Database Error: PHP mysqli extension not loaded. This is a must have for TYPO3 CMS!',
1173 1271492607
1174 );
1175 }
1176
1177 if ($host || $username || $password) {
1178 $this->handleDeprecatedConnectArguments($host, $username, $password);
1179 }
1180
1181 $host = $this->persistentDatabaseConnection
1182 ? 'p:' . $this->databaseHost
1183 : $this->databaseHost;
1184
1185 $this->link = mysqli_init();
1186 $connected = $this->link->real_connect(
1187 $this->databaseHost,
1188 $this->databaseUsername,
1189 $this->databaseUserPassword,
1190 NULL,
1191 (int)$this->databasePort,
1192 $this->databaseSocket,
1193 $this->connectionCompression ? MYSQLI_CLIENT_COMPRESS : 0
1194 );
1195
1196 if ($connected) {
1197 $this->isConnected = TRUE;
1198 foreach ($this->initializeCommandsAfterConnect as $command) {
1199 if ($this->link->query($command) === FALSE) {
1200 \TYPO3\CMS\Core\Utility\GeneralUtility::sysLog(
1201 'Could not initialize DB connection with query "' . $command . '": ' . $this->sql_error(),
1202 'Core',
1203 \TYPO3\CMS\Core\Utility\GeneralUtility::SYSLOG_SEVERITY_ERROR
1204 );
1205 }
1206 }
1207 $this->setSqlMode();
1208 } else {
1209 // @TODO: This should raise an exception. Would be useful especially to work during installation.
1210 $error_msg = $this->link->connect_error;
1211 $this->link = NULL;
1212 \TYPO3\CMS\Core\Utility\GeneralUtility::sysLog(
1213 'Could not connect to MySQL server ' . $host . ' with user ' . $username . ': ' . $error_msg,
1214 'Core',
1215 \TYPO3\CMS\Core\Utility\GeneralUtility::SYSLOG_SEVERITY_FATAL
1216 );
1217 }
1218 return $this->link;
1219 }
1220
1221 /**
1222 * Fixes the SQL mode by unsetting NO_BACKSLASH_ESCAPES if found.
1223 *
1224 * @return void
1225 */
1226 protected function setSqlMode() {
1227 $resource = $this->sql_query('SELECT @@SESSION.sql_mode;');
1228 if ($resource) {
1229 $result = $this->sql_fetch_row($resource);
1230 if (isset($result[0]) && $result[0] && strpos($result[0], 'NO_BACKSLASH_ESCAPES') !== FALSE) {
1231 $modes = array_diff(\TYPO3\CMS\Core\Utility\GeneralUtility::trimExplode(',', $result[0]), array('NO_BACKSLASH_ESCAPES'));
1232 $query = 'SET sql_mode=\'' . $this->link->real_escape_string(implode(',', $modes)) . '\';';
1233 $this->sql_query($query);
1234 \TYPO3\CMS\Core\Utility\GeneralUtility::sysLog(
1235 'NO_BACKSLASH_ESCAPES could not be removed from SQL mode: ' . $this->sql_error(),
1236 'Core',
1237 \TYPO3\CMS\Core\Utility\GeneralUtility::SYSLOG_SEVERITY_ERROR
1238 );
1239 }
1240 }
1241 }
1242
1243 /**
1244 * Select a SQL database
1245 *
1246 * @param string $TYPO3_db Deprecated since 6.1, will be removed in two versions. Database to connect to.
1247 * @return boolean Returns TRUE on success or FALSE on failure.
1248 */
1249 public function sql_select_db($TYPO3_db = NULL) {
1250 if (!$this->isConnected) {
1251 $this->connectDB();
1252 }
1253
1254 if ($TYPO3_db) {
1255 \TYPO3\CMS\Core\Utility\GeneralUtility::deprecationLog(
1256 'DatabaseConnection->sql_select_db() should be called without arguments.' .
1257 ' Use the setDatabaseName() before. Will be removed two versions after 6.1.'
1258 );
1259 } else {
1260 $TYPO3_db = $this->databaseName;
1261 }
1262
1263 $ret = $this->link->select_db($TYPO3_db);
1264 if (!$ret) {
1265 \TYPO3\CMS\Core\Utility\GeneralUtility::sysLog(
1266 'Could not select MySQL database ' . $TYPO3_db . ': ' . $this->sql_error(),
1267 'Core',
1268 \TYPO3\CMS\Core\Utility\GeneralUtility::SYSLOG_SEVERITY_FATAL
1269 );
1270 }
1271 return $ret;
1272 }
1273
1274 /**************************************
1275 *
1276 * SQL admin functions
1277 * (For use in the Install Tool and Extension Manager)
1278 *
1279 **************************************/
1280 /**
1281 * Listing databases from current MySQL connection. NOTICE: It WILL try to select those databases and thus break selection of current database.
1282 * This is only used as a service function in the (1-2-3 process) of the Install Tool.
1283 * In any case a lookup should be done in the _DEFAULT handler DBMS then.
1284 * Use in Install Tool only!
1285 *
1286 * @return array Each entry represents a database name
1287 */
1288 public function admin_get_dbs() {
1289 if (!$this->isConnected) {
1290 $this->connectDB();
1291 }
1292 $dbArr = array();
1293 $db_list = $this->link->query("SHOW DATABASES");
1294 while ($row = $db_list->fetch_object()) {
1295 try {
1296 $this->setDatabaseName($row->Database);
1297 if ($this->sql_select_db()) {
1298 $dbArr[] = $row->Database;
1299 }
1300 } catch (\RuntimeException $exception) {
1301 // The exception happens if we cannot connect to the database
1302 // (usually due to missing permissions). This is ok here.
1303 // We catch the exception, skip the database and continue.
1304 }
1305 }
1306 return $dbArr;
1307 }
1308
1309 /**
1310 * Returns the list of tables from the default database, TYPO3_db (quering the DBMS)
1311 * In a DBAL this method should 1) look up all tables from the DBMS of
1312 * the _DEFAULT handler and then 2) add all tables *configured* to be managed by other handlers
1313 *
1314 * @return array Array with tablenames as key and arrays with status information as value
1315 */
1316 public function admin_get_tables() {
1317 if (!$this->isConnected) {
1318 $this->connectDB();
1319 }
1320 $whichTables = array();
1321 $tables_result = $this->link->query('SHOW TABLE STATUS FROM `' . TYPO3_db . '`');
1322 if ($tables_result !== FALSE) {
1323 while ($theTable = $tables_result->fetch_assoc()) {
1324 $whichTables[$theTable['Name']] = $theTable;
1325 }
1326 $tables_result->free();
1327 }
1328 return $whichTables;
1329 }
1330
1331 /**
1332 * Returns information about each field in the $table (quering the DBMS)
1333 * In a DBAL this should look up the right handler for the table and return compatible information
1334 * This function is important not only for the Install Tool but probably for
1335 * DBALs as well since they might need to look up table specific information
1336 * in order to construct correct queries. In such cases this information should
1337 * probably be cached for quick delivery.
1338 *
1339 * @param string $tableName Table name
1340 * @return array Field information in an associative array with fieldname => field row
1341 */
1342 public function admin_get_fields($tableName) {
1343 if (!$this->isConnected) {
1344 $this->connectDB();
1345 }
1346 $output = array();
1347 $columns_res = $this->link->query('SHOW COLUMNS FROM `' . $tableName . '`');
1348 while ($fieldRow = $columns_res->fetch_assoc()) {
1349 $output[$fieldRow['Field']] = $fieldRow;
1350 }
1351 $columns_res->free();
1352 return $output;
1353 }
1354
1355 /**
1356 * Returns information about each index key in the $table (quering the DBMS)
1357 * In a DBAL this should look up the right handler for the table and return compatible information
1358 *
1359 * @param string $tableName Table name
1360 * @return array Key information in a numeric array
1361 */
1362 public function admin_get_keys($tableName) {
1363 if (!$this->isConnected) {
1364 $this->connectDB();
1365 }
1366 $output = array();
1367 $keyRes = $this->link->query('SHOW KEYS FROM `' . $tableName . '`');
1368 while ($keyRow = $keyRes->fetch_assoc()) {
1369 $output[] = $keyRow;
1370 }
1371 $keyRes->free();
1372 return $output;
1373 }
1374
1375 /**
1376 * Returns information about the character sets supported by the current DBM
1377 * This function is important not only for the Install Tool but probably for
1378 * DBALs as well since they might need to look up table specific information
1379 * in order to construct correct queries. In such cases this information should
1380 * probably be cached for quick delivery.
1381 *
1382 * This is used by the Install Tool to convert tables tables with non-UTF8 charsets
1383 * Use in Install Tool only!
1384 *
1385 * @return array Array with Charset as key and an array of "Charset", "Description", "Default collation", "Maxlen" as values
1386 */
1387 public function admin_get_charsets() {
1388 if (!$this->isConnected) {
1389 $this->connectDB();
1390 }
1391 $output = array();
1392 $columns_res = $this->link->query('SHOW CHARACTER SET');
1393 if ($columns_res !== FALSE) {
1394 while ($row = $columns_res->fetch_assoc()) {
1395 $output[$row['Charset']] = $row;
1396 }
1397 $columns_res->free();
1398 }
1399 return $output;
1400 }
1401
1402 /**
1403 * mysqli() wrapper function, used by the Install Tool and EM for all queries regarding management of the database!
1404 *
1405 * @param string $query Query to execute
1406 * @return boolean|\mysqli_result|object MySQLi result object / DBAL object
1407 */
1408 public function admin_query($query) {
1409 if (!$this->isConnected) {
1410 $this->connectDB();
1411 }
1412 $res = $this->link->query($query);
1413 if ($this->debugOutput) {
1414 $this->debug('admin_query', $query);
1415 }
1416 return $res;
1417 }
1418
1419 /******************************
1420 *
1421 * Connect handling
1422 *
1423 ******************************/
1424
1425 /**
1426 * Set database host
1427 *
1428 * @param string $host
1429 */
1430 public function setDatabaseHost($host = 'localhost') {
1431 $this->disconnectIfConnected();
1432 $this->databaseHost = $host;
1433 }
1434
1435 /**
1436 * Set database port
1437 *
1438 * @param integer $port
1439 */
1440 public function setDatabasePort($port = 3306) {
1441 $this->disconnectIfConnected();
1442 $this->databasePort = (int)$port;
1443 }
1444
1445 /**
1446 * Set database socket
1447 *
1448 * @param string|NULL $socket
1449 */
1450 public function setDatabaseSocket($socket = NULL) {
1451 $this->disconnectIfConnected();
1452 $this->databaseSocket = $socket;
1453 }
1454
1455 /**
1456 * Set database name
1457 *
1458 * @param string $name
1459 */
1460 public function setDatabaseName($name) {
1461 $this->disconnectIfConnected();
1462 $this->databaseName = $name;
1463 }
1464
1465 /**
1466 * Set database username
1467 *
1468 * @param string $username
1469 */
1470 public function setDatabaseUsername($username) {
1471 $this->disconnectIfConnected();
1472 $this->databaseUsername = $username;
1473 }
1474
1475 /**
1476 * Set database password
1477 *
1478 * @param string $password
1479 */
1480 public function setDatabasePassword($password) {
1481 $this->disconnectIfConnected();
1482 $this->databaseUserPassword = $password;
1483 }
1484
1485 /**
1486 * Set persistent database connection
1487 *
1488 * @param boolean $persistentDatabaseConnection
1489 * @see http://php.net/manual/de/mysqli.persistconns.php
1490 */
1491 public function setPersistentDatabaseConnection($persistentDatabaseConnection) {
1492 $this->disconnectIfConnected();
1493 $this->persistentDatabaseConnection = (bool)$persistentDatabaseConnection;
1494 }
1495
1496 /**
1497 * Set connection compression. Might be an advantage, if SQL server is not on localhost
1498 *
1499 * @param bool $connectionCompression TRUE if connection should be compressed
1500 */
1501 public function setConnectionCompression($connectionCompression) {
1502 $this->disconnectIfConnected();
1503 $this->connectionCompression = (bool)$connectionCompression;
1504 }
1505
1506 /**
1507 * Set commands to be fired after connection was established
1508 *
1509 * @param array $commands List of SQL commands to be executed after connect
1510 */
1511 public function setInitializeCommandsAfterConnect(array $commands) {
1512 $this->disconnectIfConnected();
1513 $this->initializeCommandsAfterConnect = $commands;
1514 }
1515
1516 /**
1517 * Connects to database for TYPO3 sites:
1518 *
1519 * @param string $host Deprecated since 6.1, will be removed in two versions Database. host IP/domain[:port]
1520 * @param string $username Deprecated since 6.1, will be removed in two versions. Username to connect with
1521 * @param string $password Deprecated since 6.1, will be removed in two versions. Password to connect with
1522 * @param string $db Deprecated since 6.1, will be removed in two versions. Database name to connect to
1523 * @throws \RuntimeException
1524 * @throws \UnexpectedValueException
1525 * @internal param string $user Username to connect with.
1526 * @return void
1527 */
1528 public function connectDB($host = NULL, $username = NULL, $password = NULL, $db = NULL) {
1529 // Early return if connected already
1530 if ($this->isConnected) {
1531 return;
1532 }
1533
1534 if (!$this->databaseName && !$db) {
1535 throw new \RuntimeException(
1536 'TYPO3 Fatal Error: No database selected!',
1537 1270853882
1538 );
1539 }
1540
1541 if ($host || $username || $password || $db) {
1542 $this->handleDeprecatedConnectArguments($host, $username, $password, $db);
1543 }
1544
1545 if ($this->sql_pconnect()) {
1546 if (!$this->sql_select_db()) {
1547 throw new \RuntimeException(
1548 'TYPO3 Fatal Error: Cannot connect to the current database, "' . $this->databaseName . '"!',
1549 1270853883
1550 );
1551 }
1552 } else {
1553 throw new \RuntimeException(
1554 'TYPO3 Fatal Error: The current username, password or host was not accepted when the connection to the database was attempted to be established!',
1555 1270853884
1556 );
1557 }
1558
1559 // Prepare user defined objects (if any) for hooks which extend query methods
1560 $this->preProcessHookObjects = array();
1561 $this->postProcessHookObjects = array();
1562 if (is_array($GLOBALS['TYPO3_CONF_VARS']['SC_OPTIONS']['t3lib/class.t3lib_db.php']['queryProcessors'])) {
1563 foreach ($GLOBALS['TYPO3_CONF_VARS']['SC_OPTIONS']['t3lib/class.t3lib_db.php']['queryProcessors'] as $classRef) {
1564 $hookObject = \TYPO3\CMS\Core\Utility\GeneralUtility::getUserObj($classRef);
1565 if (!(
1566 $hookObject instanceof \TYPO3\CMS\Core\Database\PreProcessQueryHookInterface
1567 || $hookObject instanceof \TYPO3\CMS\Core\Database\PostProcessQueryHookInterface
1568 )) {
1569 throw new \UnexpectedValueException(
1570 '$hookObject must either implement interface TYPO3\\CMS\\Core\\Database\\PreProcessQueryHookInterface or interface TYPO3\\CMS\\Core\\Database\\PostProcessQueryHookInterface',
1571 1299158548
1572 );
1573 }
1574 if ($hookObject instanceof \TYPO3\CMS\Core\Database\PreProcessQueryHookInterface) {
1575 $this->preProcessHookObjects[] = $hookObject;
1576 }
1577 if ($hookObject instanceof \TYPO3\CMS\Core\Database\PostProcessQueryHookInterface) {
1578 $this->postProcessHookObjects[] = $hookObject;
1579 }
1580 }
1581 }
1582 }
1583
1584 /**
1585 * Checks if database is connected
1586 *
1587 * @return boolean
1588 */
1589 public function isConnected() {
1590 return $this->isConnected;
1591 }
1592
1593 /**
1594 * Disconnect from database if connected
1595 *
1596 * @return void
1597 */
1598 protected function disconnectIfConnected() {
1599 if ($this->isConnected()) {
1600 $this->link->close();
1601 $this->isConnected = FALSE;
1602 }
1603 }
1604
1605 /**
1606 * Returns current database handle
1607 *
1608 * @return \mysqli|NULL
1609 */
1610 public function getDatabaseHandle() {
1611 return $this->link;
1612 }
1613
1614 /**
1615 * Set current database handle, usually \mysqli
1616 *
1617 * @param \mysqli $handle
1618 */
1619 public function setDatabaseHandle($handle) {
1620 $this->link = $handle;
1621 }
1622
1623 /**
1624 * Handle deprecated arguments for sql_pconnect() and connectDB()
1625 *
1626 * @param string|null $host Database host[:port]
1627 * @param string|null $username Database user name
1628 * @param string|null $password User password
1629 * @param string|null $db Database
1630 */
1631 protected function handleDeprecatedConnectArguments($host = NULL, $username = NULL, $password = NULL, $db = NULL) {
1632 \TYPO3\CMS\Core\Utility\GeneralUtility::deprecationLog(
1633 'DatabaseConnection->sql_pconnect() and DatabaseConnection->connectDB() should be ' .
1634 'called without arguments. Use the setters instead.'
1635 );
1636 if ($host) {
1637 if (strpos($host, ':') > 0) {
1638 list($databaseHost, $databasePort) = explode(':', $host);
1639 $this->setDatabaseHost($databaseHost);
1640 $this->setDatabasePort($databasePort);
1641 } else {
1642 $this->setDatabaseHost($host);
1643 }
1644 }
1645 if ($username) {
1646 $this->setDatabaseUsername($username);
1647 }
1648 if ($password) {
1649 $this->setDatabasePassword($password);
1650 }
1651 if ($db) {
1652 $this->setDatabaseName($db);
1653 }
1654 }
1655
1656 /******************************
1657 *
1658 * Debugging
1659 *
1660 ******************************/
1661 /**
1662 * Debug function: Outputs error if any
1663 *
1664 * @param string $func Function calling debug()
1665 * @param string $query Last query if not last built query
1666 * @return void
1667 * @todo Define visibility
1668 */
1669 public function debug($func, $query = '') {
1670 $error = $this->sql_error();
1671 if ($error || (int) $this->debugOutput === 2) {
1672 \TYPO3\CMS\Core\Utility\DebugUtility::debug(
1673 array(
1674 'caller' => 'TYPO3\\CMS\\Core\\Database\\DatabaseConnection::' . $func,
1675 'ERROR' => $error,
1676 'lastBuiltQuery' => $query ? $query : $this->debug_lastBuiltQuery,
1677 'debug_backtrace' => \TYPO3\CMS\Core\Utility\DebugUtility::debugTrail()
1678 ),
1679 $func,
1680 is_object($GLOBALS['error']) && @is_callable(array($GLOBALS['error'], 'debug'))
1681 ? ''
1682 : 'DB Error'
1683 );
1684 }
1685 }
1686
1687 /**
1688 * Checks if record set is valid and writes debugging information into devLog if not.
1689 *
1690 * @param boolean|\mysqli_result|object MySQLi result object / DBAL object
1691 * @return boolean TRUE if the record set is valid, FALSE otherwise
1692 * @todo Define visibility
1693 */
1694 public function debug_check_recordset($res) {
1695 if ($res !== FALSE) {
1696 return TRUE;
1697 }
1698 $msg = 'Invalid database result detected';
1699 $trace = debug_backtrace();
1700 array_shift($trace);
1701 $cnt = count($trace);
1702 for ($i = 0; $i < $cnt; $i++) {
1703 // Complete objects are too large for the log
1704 if (isset($trace['object'])) {
1705 unset($trace['object']);
1706 }
1707 }
1708 $msg .= ': function TYPO3\\CMS\\Core\\Database\\DatabaseConnection->' . $trace[0]['function'] . ' called from file ' . substr($trace[0]['file'], (strlen(PATH_site) + 2)) . ' in line ' . $trace[0]['line'];
1709 \TYPO3\CMS\Core\Utility\GeneralUtility::sysLog(
1710 $msg . '. Use a devLog extension to get more details.',
1711 'Core/t3lib_db',
1712 \TYPO3\CMS\Core\Utility\GeneralUtility::SYSLOG_SEVERITY_ERROR
1713 );
1714 // Send to devLog if enabled
1715 if (TYPO3_DLOG) {
1716 $debugLogData = array(
1717 'SQL Error' => $this->sql_error(),
1718 'Backtrace' => $trace
1719 );
1720 if ($this->debug_lastBuiltQuery) {
1721 $debugLogData = array('SQL Query' => $this->debug_lastBuiltQuery) + $debugLogData;
1722 }
1723 \TYPO3\CMS\Core\Utility\GeneralUtility::devLog($msg . '.', 'Core/t3lib_db', 3, $debugLogData);
1724 }
1725 return FALSE;
1726 }
1727
1728 /**
1729 * Explain select queries
1730 * If $this->explainOutput is set, SELECT queries will be explained here. Only queries with more than one possible result row will be displayed.
1731 * The output is either printed as raw HTML output or embedded into the TS admin panel (checkbox must be enabled!)
1732 *
1733 * TODO: Feature is not DBAL-compliant
1734 *
1735 * @param string $query SQL query
1736 * @param string $from_table Table(s) from which to select. This is what comes right after "FROM ...". Required value.
1737 * @param integer $row_count Number of resulting rows
1738 * @return boolean TRUE if explain was run, FALSE otherwise
1739 */
1740 protected function explain($query, $from_table, $row_count) {
1741 $debugAllowedForIp = \TYPO3\CMS\Core\Utility\GeneralUtility::cmpIP(
1742 \TYPO3\CMS\Core\Utility\GeneralUtility::getIndpEnv('REMOTE_ADDR'),
1743 $GLOBALS['TYPO3_CONF_VARS']['SYS']['devIPmask']
1744 );
1745 if (
1746 (int)$this->explainOutput == 1
1747 || ((int)$this->explainOutput == 2 && $debugAllowedForIp)
1748 ) {
1749 // Raw HTML output
1750 $explainMode = 1;
1751 } elseif ((int) $this->explainOutput == 3 && is_object($GLOBALS['TT'])) {
1752 // Embed the output into the TS admin panel
1753 $explainMode = 2;
1754 } else {
1755 return FALSE;
1756 }
1757 $error = $this->sql_error();
1758 $trail = \TYPO3\CMS\Core\Utility\DebugUtility::debugTrail();
1759 $explain_tables = array();
1760 $explain_output = array();
1761 $res = $this->sql_query('EXPLAIN ' . $query, $this->link);
1762 if (is_a($res, '\\mysqli_result')) {
1763 while ($tempRow = $this->sql_fetch_assoc($res)) {
1764 $explain_output[] = $tempRow;
1765 $explain_tables[] = $tempRow['table'];
1766 }
1767 $this->sql_free_result($res);
1768 }
1769 $indices_output = array();
1770 // Notice: Rows are skipped if there is only one result, or if no conditions are set
1771 if (
1772 $explain_output[0]['rows'] > 1
1773 || \TYPO3\CMS\Core\Utility\GeneralUtility::inList('ALL', $explain_output[0]['type'])
1774 ) {
1775 // Only enable output if it's really useful
1776 $debug = TRUE;
1777 foreach ($explain_tables as $table) {
1778 $tableRes = $this->sql_query('SHOW TABLE STATUS LIKE \'' . $table . '\'');
1779 $isTable = $this->sql_num_rows($tableRes);
1780 if ($isTable) {
1781 $res = $this->sql_query('SHOW INDEX FROM ' . $table, $this->link);
1782 if (is_a($res, '\\mysqli_result')) {
1783 while ($tempRow = $this->sql_fetch_assoc($res)) {
1784 $indices_output[] = $tempRow;
1785 }
1786 $this->sql_free_result($res);
1787 }
1788 }
1789 $this->sql_free_result($tableRes);
1790 }
1791 } else {
1792 $debug = FALSE;
1793 }
1794 if ($debug) {
1795 if ($explainMode) {
1796 $data = array();
1797 $data['query'] = $query;
1798 $data['trail'] = $trail;
1799 $data['row_count'] = $row_count;
1800 if ($error) {
1801 $data['error'] = $error;
1802 }
1803 if (count($explain_output)) {
1804 $data['explain'] = $explain_output;
1805 }
1806 if (count($indices_output)) {
1807 $data['indices'] = $indices_output;
1808 }
1809 if ($explainMode == 1) {
1810 \TYPO3\CMS\Core\Utility\DebugUtility::debug($data, 'Tables: ' . $from_table, 'DB SQL EXPLAIN');
1811 } elseif ($explainMode == 2) {
1812 $GLOBALS['TT']->setTSselectQuery($data);
1813 }
1814 }
1815 return TRUE;
1816 }
1817 return FALSE;
1818 }
1819
1820 /**
1821 * Serialize destructs current connection
1822 *
1823 * @return array All protected properties that should be saved
1824 */
1825 public function __sleep() {
1826 $this->disconnectIfConnected();
1827 return array(
1828 'debugOutput',
1829 'explainOutput',
1830 'databaseHost',
1831 'databasePort',
1832 'databaseSocket',
1833 'databaseName',
1834 'databaseUsername',
1835 'databaseUserPassword',
1836 'persistentDatabaseConnection',
1837 'connectionCompression',
1838 'initializeCommandsAfterConnect',
1839 'default_charset',
1840 );
1841 }
1842 }
1843 ?>