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<?php $itemList = array( array(0) array(1), array(0,1), array(0,1,2,3,4) array(new stdClass), array(new stdClass, new stdClass), array(new stdClass, new stdClass, new stdClass) ); function doCompare($a, $b){ return $a === $b; }; foreach ($itemList as $item) { var_dump(array_udiff($item, $item)); }
Output for 5.4.0 - 5.4.32
Parse error: syntax error, unexpected 'array' (T_ARRAY), expecting ')' in /in/Jaa5v on line 5
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_ARRAY, expecting ')' in /in/Jaa5v on line 5
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_ARRAY, expecting ')' in /in/Jaa5v on line 5
Process exited with code 255.
Output for 4.3.2 - 4.3.4
Parse error: parse error, expecting `')'' in /in/Jaa5v on line 5
Process exited with code 255.

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