3v4l.org

run code in 300+ PHP versions simultaneously
<?php function wer($x) { print_r($x); $x[] = 'ttt'; } $e = 'ert'; call_user_func('wer', [&$e]); print_r($x);
Output for 8.0.0 - 8.0.30, 8.1.0 - 8.1.28, 8.2.0 - 8.2.18, 8.3.0 - 8.3.4, 8.3.6
Array ( [0] => ert ) Warning: Undefined variable $x in /in/YB6Ea on line 8
Output for 8.3.5
Warning: PHP Startup: Unable to load dynamic library 'sodium.so' (tried: /usr/lib/php/8.3.5/modules/sodium.so (libsodium.so.23: cannot open shared object file: No such file or directory), /usr/lib/php/8.3.5/modules/sodium.so.so (/usr/lib/php/8.3.5/modules/sodium.so.so: cannot open shared object file: No such file or directory)) in Unknown on line 0 Array ( [0] => ert ) Warning: Undefined variable $x in /in/YB6Ea on line 8
Output for 7.0.0 - 7.0.31, 7.1.0 - 7.1.21, 7.2.0 - 7.2.33, 7.3.16 - 7.3.31, 7.4.0 - 7.4.33
Array ( [0] => ert ) Notice: Undefined variable: x in /in/YB6Ea on line 8
Output for 7.3.32 - 7.3.33
Array ( [0] => ert )

preferences:
163.03 ms | 401 KiB | 204 Q