Req #53736 [Opn->Wfx]: array_walk key reference

Edit report at http://bugs.php.net/bug.php?id=53736&edit=1 ID: 53736 Updated by: cataphract@php.net Reported by: samuel dot roze at gmail dot com Summary: array_walk key reference -Status: Open +Status: Wont fix Type: Feature/Change Request Package: Arrays related Operating System: Redhat 5 PHP Version: 5.3.5 Block user comment: N Private report: N New Comment: Array keys are not proper PHP values, so this is not possible. There is no reasonable way to handle a callback function that did: function (&$value, &$key) { $key = function () {}; //or $key = array(); } Previous Comments: ------------------------------------------------------------------------ [2011-01-13 14:48:41] samuel dot roze at gmail dot com Description: ------------ The keys of arrays should be accessible by reference into walking functions. See the scripts below: Test script: --------------- $array = array( 'COL1' => 'VALue1', 'COL2' => '2', 'COL4' => 'valUE3' ); var_dump($array); $walk = array_walk($array, function (&$value, &$key) { $key = strtolower($key); $value = strtolower($value); }); var_dump($walk, $array); Expected result: ---------------- array 'COL1' => string 'VALue1' (length=6) 'COL2' => string '2' (length=1) 'COL4' => string 'valUE3' (length=6) boolean true array 'col1' => string 'value1' (length=6) 'col2' => string '2' (length=1) 'col4' => string 'value3' (length=6) Actual result: -------------- array 'COL1' => string 'VALue1' (length=6) 'COL2' => string '2' (length=1) 'COL4' => string 'valUE3' (length=6) boolean true array 'COL1' => string 'value1' (length=6) 'COL2' => string '2' (length=1) 'COL4' => string 'value3' (length=6) ------------------------------------------------------------------------ -- Edit this bug report at http://bugs.php.net/bug.php?id=53736&edit=1