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run code in 300+ PHP versions simultaneously
<?php $a = array(1,2,3,4); function boom($a) { return $a+1; } array_walk('boom', ($new = $a)); var_dump($new);
Output for 8.3.0 - 8.3.6
Fatal error: Uncaught Error: array_walk(): Argument #1 ($array) could not be passed by reference in /in/H7AjV:6 Stack trace: #0 {main} thrown in /in/H7AjV on line 6
Process exited with code 255.
Output for 8.1.23 - 8.1.28, 8.2.10 - 8.2.18
Fatal error: Uncaught Error: array_walk(): Argument #1 ($array) cannot be passed by reference in /in/H7AjV:6 Stack trace: #0 {main} thrown in /in/H7AjV on line 6
Process exited with code 255.
Output for 5.3.0 - 5.3.27, 5.4.0 - 5.4.20
Fatal error: Only variables can be passed by reference in /in/H7AjV on line 6
Process exited with code 255.
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