3v4l.org

run code in 200+ php & hhvm versions
Bugs & Features
<?php $clashes = [ [ "s1_id" => 26, "s2_id" => 27 ], [ "s1_id" => 26, "s2_id" => 27 ] ]; array_walk($clashes, function (&$item, $key) use ($item) { if (in_array($item, $item, true)) { unset($item); } }, array()); var_dump($clashes);
based on TFTdG
Output for 7.1.0 - 7.3.0beta1
Fatal error: Cannot use lexical variable $item as a parameter name in /in/pEb2p on line 14
Process exited with code 255.
Output for 5.4.0 - 7.0.20
Notice: Undefined variable: item in /in/pEb2p on line 14 Warning: in_array() expects parameter 2 to be array, null given in /in/pEb2p on line 15 Warning: in_array() expects parameter 2 to be array, null given in /in/pEb2p on line 15 array(2) { [0]=> NULL [1]=> NULL }
Output for 4.4.2 - 4.4.9, 5.1.0 - 5.3.29
Parse error: syntax error, unexpected '[' in /in/pEb2p on line 3
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 '[' in /in/pEb2p on line 3
Process exited with code 255.
Output for 4.3.2 - 4.3.4
Parse error: parse error in /in/pEb2p on line 3
Process exited with code 255.