3v4l.org

run code in 150+ php & hhvm versions
Bugs & Features
<?php $a = array(array(0)); array_walk( $a, function (&$e) { array_filter(array(), function() use ($e) {}); $e[] = 1; } ); print_r($a[0]);
Output for 5.3.7 - 5.6.21, hhvm-3.10.0 - 3.12.0, 7.0.0 - 7.1.0
Array ( [0] => 0 [1] => 1 )
Output for 5.3.6
Array ( [34148056] => 34148512 [1] => 1 )
Output for 5.3.0 - 5.3.5
Array ( [0] => 0 )
Output for 4.4.2 - 4.4.9, 5.1.0 - 5.2.17
Parse error: syntax error, unexpected T_FUNCTION in /in/ZZ2F3 on line 7
Process exited with code 255.
Output for 4.3.0 - 4.3.1, 4.3.5 - 4.4.1, 5.0.0 - 5.0.5
Parse error: parse error, unexpected T_FUNCTION in /in/ZZ2F3 on line 7
Process exited with code 255.
Output for 4.3.2 - 4.3.4
Parse error: parse error in /in/ZZ2F3 on line 7
Process exited with code 255.