3v4l.org

run code in 150+ php & hhvm versions
Bugs & Features
<?php $items = array(new \stdClass(), new \stdClass()); $copy = array(); foreach ($items as $item) { $copy[] = $item; } $udiff = array_udiff($items, $copy, function ($a, $b) { return $a === $b; }); var_dump($diff, $udiff, $items, $copy);
based on a2HNT
Output for 5.3.0 - 7.1.0
Notice: Undefined variable: diff in /in/MQeLt on line 15 NULL array(0) { } array(2) { [0]=> object(stdClass)#1 (0) { } [1]=> object(stdClass)#2 (0) { } } array(2) { [0]=> object(stdClass)#1 (0) { } [1]=> object(stdClass)#2 (0) { } }
Output for 4.4.2 - 4.4.9, 5.1.0 - 5.2.17
Warning: Unexpected character in input: '\' (ASCII=92) state=1 in /in/MQeLt on line 4 Warning: Unexpected character in input: '\' (ASCII=92) state=1 in /in/MQeLt on line 4 Parse error: syntax error, unexpected T_FUNCTION in /in/MQeLt on line 11
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
Warning: Unexpected character in input: '\' (ASCII=92) state=1 in /in/MQeLt on line 4 Warning: Unexpected character in input: '\' (ASCII=92) state=1 in /in/MQeLt on line 4 Parse error: parse error, unexpected T_FUNCTION in /in/MQeLt on line 11
Process exited with code 255.
Output for 4.3.2 - 4.3.4
Warning: Unexpected character in input: '\' (ASCII=92) state=1 in /in/MQeLt on line 4 Warning: Unexpected character in input: '\' (ASCII=92) state=1 in /in/MQeLt on line 4 Parse error: parse error in /in/MQeLt on line 11
Process exited with code 255.