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run code in 150+ php & hhvm versions
Bugs & Features
<?php class C { } $items = array(new C, new C); $udiff = array_udiff($items, $items, function ($a, $b) { $result = $a === $b; print($result."\n"); return $result; }); var_dump($udiff);
based on 6CSGT
Output for 5.3.0 - 5.6.28, 7.0.0 - 7.1.0
1 array(0) { }
Output for hhvm-3.10.0 - 3.12.0
1 array(1) { [0]=> object(C)#1 (0) { } }
Output for 4.4.2 - 4.4.9, 5.1.0 - 5.2.17
Parse error: syntax error, unexpected T_FUNCTION in /in/fgFjG on line 8
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/fgFjG on line 8
Process exited with code 255.
Output for 4.3.2 - 4.3.4
Parse error: parse error in /in/fgFjG on line 8
Process exited with code 255.