3v4l.org

run code in 300+ PHP versions simultaneously
<?php function cube($n) { return(unset($n)); } $a = array(1, 2, 3, 4, 5); $b = array_map("cube", $a); print_r($b); ?>
Output for 5.4.0 - 5.4.32
Parse error: syntax error, unexpected 'unset' (T_UNSET) in /in/krk7S on line 4
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, 5.3.0 - 5.3.29
Parse error: syntax error, unexpected T_UNSET in /in/krk7S on line 4
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_UNSET in /in/krk7S on line 4
Process exited with code 255.
Output for 4.3.2 - 4.3.4
Parse error: parse error in /in/krk7S on line 4
Process exited with code 255.
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318.8 ms | 1399 KiB | 124 Q