Fixed bug/something which might keep PHP in an eternal loop !

git-svn-id: https://svn.typo3.org/TYPO3v4/Core/trunk@38 709f56b5-9817-0410-a4d7-c38de5d9e867

diff --git a/t3lib/class.t3lib_treeview.php b/t3lib/class.t3lib_treeview.php
index ded79e2..c20cca0 100755 (executable)
--- a/t3lib/class.t3lib_treeview.php
+++ b/t3lib/class.t3lib_treeview.php
@@ -676,51 +676,54 @@ class t3lib_treeView {
 
                        // Traverse the records:
                while ($row = $this->getDataNext($res)) {
-                       $a++;
-
-                       $newID =$row['uid'];
-                       $this->tree[]=array();          // Reserve space.
-                       end($this->tree);
-                       $treeKey = key($this->tree);    // Get the key for this space
-                       $LN = ($a==$c)?'blank':'line';
-
-                               // If records should be accumulated, do so
-                       if ($this->setRecs)     {
-                               $this->recs[$row['uid']] = $row;
-                       }
-
-                               // accumulate the id of the page in the internal arrays
-                       $this->ids[]=$idH[$row['uid']]['uid']=$row['uid'];
-                       $this->ids_hierarchy[$depth][]=$row['uid'];
-
-                               // Make a recursive call to the next level
-                       if ($depth>1 && $this->expandNext($newID) && !$row['php_tree_stop'])    {
-                               $nextCount=$this->getTree(
-                                       $newID,
-                                       $depth-1,
-                                       $this->makeHTML?$depthData.'<img src="'.$this->backPath.'t3lib/gfx/ol/'.$LN.'.gif" width="18" height="16" align="top" alt="" />':'',
-                                       $blankLineCode.','.$LN
-                                       );
-                               if (count($this->buffer_idH))   $idH[$row['uid']]['subrow']=$this->buffer_idH;
-                               $exp=1; // Set "did expanded" flag
-                       } else {
-                               $nextCount=$this->getCount($newID);
-                               $exp=0; // Clear "did expanded" flag
-                       }
-                               // Set HTML-icons, if any:
-                       if ($this->makeHTML)    {
-                               $HTML = $depthData.$this->PMicon($row,$a,$c,$nextCount,$exp);
-                               $HTML.=$this->wrapStop($this->wrapIcon($this->getIcon($row),$row),$row);
+                               # IF $row is NOT an array then this will go into some eternal loop which consumes huge amounts of memory - not good.
+                               # PROBABLY this could happend anyways if the input array contains the same id many times. However this is not cleared yet - investigate this!
+                       if (is_array($row))     {
+                               $a++;
+       
+                               $newID =$row['uid'];
+                               $this->tree[]=array();          // Reserve space.
+                               end($this->tree);
+                               $treeKey = key($this->tree);    // Get the key for this space
+                               $LN = ($a==$c)?'blank':'line';
+       
+                                       // If records should be accumulated, do so
+                               if ($this->setRecs)     {
+                                       $this->recs[$row['uid']] = $row;
+                               }
+       
+                                       // accumulate the id of the page in the internal arrays
+                               $this->ids[]=$idH[$row['uid']]['uid']=$row['uid'];
+                               $this->ids_hierarchy[$depth][]=$row['uid'];
+       
+                                       // Make a recursive call to the next level
+                               if ($depth>1 && $this->expandNext($newID) && !$row['php_tree_stop'])    {
+                                       $nextCount=$this->getTree(
+                                               $newID,
+                                               $depth-1,
+                                               $this->makeHTML?$depthData.'<img src="'.$this->backPath.'t3lib/gfx/ol/'.$LN.'.gif" width="18" height="16" align="top" alt="" />':'',
+                                               $blankLineCode.','.$LN
+                                               );
+                                       if (count($this->buffer_idH))   $idH[$row['uid']]['subrow']=$this->buffer_idH;
+                                       $exp=1; // Set "did expanded" flag
+                               } else {
+                                       $nextCount=$this->getCount($newID);
+                                       $exp=0; // Clear "did expanded" flag
+                               }
+                                       // Set HTML-icons, if any:
+                               if ($this->makeHTML)    {
+                                       $HTML = $depthData.$this->PMicon($row,$a,$c,$nextCount,$exp);
+                                       $HTML.=$this->wrapStop($this->wrapIcon($this->getIcon($row),$row),$row);
+                               }
+       
+                                       // Finally, add the row/HTML content to the ->tree array in the reserved key.
+                               $this->tree[$treeKey] = Array(
+                                       'row'=>$row,
+                                       'HTML'=>$HTML,
+                                       'invertedDepth'=>$depth,
+                                       'blankLineCode'=>$blankLineCode
+                               );
                        }
-
-                               // Finally, add the row/HTML content to the ->tree array in the reserved key.
-                       $this->tree[$treeKey] = Array(
-                               'row'=>$row,
-                               'HTML'=>$HTML,
-                               'invertedDepth'=>$depth,
-                               'blankLineCode'=>$blankLineCode
-                       );
-
                }
 
                $this->getDataFree($res);