3v4l.org

run code in 300+ PHP versions simultaneously
<?php $tests = ['derp.php', 'test.php']; array_walk(function(&$test) { $test = substr($test, 0, strrpos($test, '.')); }, $tests); var_dump($tests);
Output for 8.3.0 - 8.3.6
Fatal error: Uncaught Error: array_walk(): Argument #1 ($array) could not be passed by reference in /in/5FgYB:6 Stack trace: #0 {main} thrown in /in/5FgYB on line 6
Process exited with code 255.
Output for 8.1.23 - 8.1.28, 8.2.10 - 8.2.18
Fatal error: Uncaught Error: array_walk(): Argument #1 ($array) cannot be passed by reference in /in/5FgYB:6 Stack trace: #0 {main} thrown in /in/5FgYB on line 6
Process exited with code 255.
Output for 5.4.0 - 5.4.28
Fatal error: Only variables can be passed by reference in /in/5FgYB on line 6
Process exited with code 255.
Output for 5.3.0 - 5.3.28
Parse error: syntax error, unexpected '[' in /in/5FgYB on line 2
Process exited with code 255.
preferences:
90.58 ms | 401 KiB | 85 Q