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<?php function i($n){return intval($n);} $b = array_walk(array("1","2"),"i"); var_dump($b);
Output for 8.3.0 - 8.3.4
Fatal error: Uncaught Error: array_walk(): Argument #1 ($array) could not be passed by reference in /in/U4Ynh:3 Stack trace: #0 {main} thrown in /in/U4Ynh on line 3
Process exited with code 255.
Output for 8.1.23 - 8.1.27, 8.2.10 - 8.2.17
Fatal error: Uncaught Error: array_walk(): Argument #1 ($array) cannot be passed by reference in /in/U4Ynh:3 Stack trace: #0 {main} thrown in /in/U4Ynh on line 3
Process exited with code 255.
Output for 4.3.2 - 4.3.11, 4.4.0 - 4.4.9, 5.0.0 - 5.0.5, 5.1.0 - 5.1.6, 5.2.0 - 5.2.17, 5.3.0 - 5.3.28, 5.4.0 - 5.4.26
Fatal error: Only variables can be passed by reference in /in/U4Ynh on line 3
Process exited with code 255.
Output for 4.3.0 - 4.3.1
Fatal error: Only variables can be passed by reference in /in/U4Ynh on line 3

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