#36022 [Opn->Bgs]: Function call by reference: undocumented BC-break

ID: 36022 Updated by: derick@php.net Reported By: mail at garv dot in -Status: Open +Status: Bogus Bug Type: Scripting Engine problem Operating System: Linux PHP Version: 5.1.2 New Comment: Please do not submit the same bug more than once. An existing bug report already describes this very problem. Even if you feel that your issue is somewhat different, the resolution is likely to be the same. Thank you for your interest in PHP. Duplicate of: #35995. Previous Comments: ------------------------------------------------------------------------ [2006-01-15 16:08:32] mail at garv dot in Description: ------------ When calling a function that expects an argument as a referenced variable, you cannot pass an assignment operation to the function. If doing so, the function will not change the assignment operation by reference. This has worked before PHP 5.1.2. Reproduce code: --------------- <?php function myFunc(&$var) { $var = 'set in function'; } $var = 'set before function'; myFunc($var = 'set in function call'); var_dump($var); ?> Expected result: ---------------- PHP lower than 5.1.2 reported "set in function", which is the expected behaviour. Actual result: -------------- PHP 5.1.2 actually reports "set in function call", which is not the expected behaviour and thus a BC break. I guess this change is a side-effect of recent "return by reference" problems that were addressed in PHP 4.4 already. I personally do not use code above, but other PHP applications like phpMyAdmin do (did). So at least having this documented in the PHP5 ChangeLog as a BC break would've been nice - just in case this change is "by intention". ------------------------------------------------------------------------ -- Edit this bug report at http://bugs.php.net/?id=36022&edit=1