ID: 26143 Updated by: [EMAIL PROTECTED] Reported By: claus-poerschke at gmx dot de -Status: Open +Status: Bogus Bug Type: *General Issues Operating System: Suse Linux 8.2 PHP Version: 4.3.4 New Comment:
Thank you for taking the time to write to us, but this is not a bug. Please double-check the documentation available at http://www.php.net/manual/ and the instructions on how to report a bug at http://bugs.php.net/how-to-report.php A copy of a reference is still a reference. <?php $foo = 'huh?'; $a = array(&$foo); $b = $a; var_dump($b); $b[0] = '???'; var_dump($foo); ?> result: array(1) { [0]=> &string(4) "huh? } string(3) "???" Previous Comments: ------------------------------------------------------------------------ [2003-11-05 16:33:28] claus-poerschke at gmx dot de Description: ------------ Implementing a Composite Pattern I get an unexpected recursion. If I remove the &-Operator in the aPart::addChild() it works. Further comments are made in the code: Reproduce code: --------------- #!/usr/local/bin/php <?php class aPart { var $mChildren; var $mName; function aPart($name) { $this->mName = $name; $this->mChildren = array(); } function addChild(&$child) { $this->mChildren[] =& $child; } function showParts($indent='') { echo $indent . $this->mName . "\n"; for ($i = 0;$i < sizeof($this->mChildren);$i++) { $this->mChildren[$i]->showParts($indent . ' '); } } } $arrParts = array('bar','baz'); $objP =& new aPart('foo'); // normally i read a template File $objP1 = $objP; // make Copy - to avoid filesystem Operation! $objP2 = $objP; // too $objP1->mName = $arrParts[0]; // assign bar $objP2->mName = $arrParts[1]; // assing baz $objP->addChild($objP1); // Add Component 1 $objP->addChild($objP2); // Add Component 2 $objP->showParts(); // show the tree /* Prints as expected: foo bar baz */ // cleanup unset($objP); unset($objP1); unset($objP2); // try doing the above it another way $objP =& new aPart('foo'); for ($i=0;$i<sizeof($arrParts); $i++) { $objP1 = $objP; // I expected a Copy here :-( $objP1->mName = $arrParts[$i]; $objP->addChild($objP1); } $objP->showParts();// Recursion !!! ?> Expected result: ---------------- Read the comments in the script: foo bar baz Actual result: -------------- In the second example i'am getting an recursion foo baz baz baz baz ..... ------------------------------------------------------------------------ -- Edit this bug report at http://bugs.php.net/?id=26143&edit=1