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<?php $a = array_diff_keys(array('key1' => 'value1', 'key2' => 'value2'), array('key3' => 'value3', 'key2' => 'value4')); var_dump($a);
Output for 7.0.0 - 7.1.0
Fatal error: Uncaught Error: Call to undefined function array_diff_keys() in /in/g4Qr7:2 Stack trace: #0 {main} thrown in /in/g4Qr7 on line 2
Process exited with code 255.
Output for 5.0.0 - 5.6.28, hhvm-3.10.0 - 3.12.0
Fatal error: Call to undefined function array_diff_keys() in /in/g4Qr7 on line 2
Process exited with code 255.
Output for 4.4.5 - 4.4.9
Fatal error: Call to undefined function: array_diff_keys() in /in/g4Qr7 on line 2
Process exited with code 255.
Output for 4.3.2 - 4.4.4
Fatal error: Call to undefined function: array_diff_keys() in /in/g4Qr7 on line 2
Process exited with code 255.
Output for 4.3.0 - 4.3.1
Fatal error: Call to undefined function: array_diff_keys() in /in/g4Qr7 on line 2