3v4l.org

run code in 300+ PHP versions simultaneously
<?php $closure = function(...$args) use(&$closure){ array_walk($args, function($arg) use($closure){ if(is_array($arg)){ $closure($arg); }else{ echo $arg; } }); }
Output for 5.4.0 - 5.4.39
Parse error: syntax error, unexpected '.', expecting '&' or variable (T_VARIABLE) in /in/0gmWM on line 2
Process exited with code 255.
Output for 5.3.0 - 5.3.29
Parse error: syntax error, unexpected '.', expecting '&' or T_VARIABLE in /in/0gmWM on line 2
Process exited with code 255.
Output for 4.4.2 - 4.4.9, 5.1.0 - 5.1.6, 5.2.0 - 5.2.17
Parse error: syntax error, unexpected T_FUNCTION in /in/0gmWM on line 2
Process exited with code 255.
Output for 4.3.0 - 4.3.1, 4.3.5 - 4.3.11, 4.4.0 - 4.4.1, 5.0.0 - 5.0.5
Parse error: parse error, unexpected T_FUNCTION in /in/0gmWM on line 2
Process exited with code 255.
Output for 4.3.2 - 4.3.4
Parse error: parse error in /in/0gmWM on line 2
Process exited with code 255.

preferences:
220.1 ms | 1395 KiB | 129 Q