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<?php $a = array_diff_key(array('key1' => 'value1', 'key2' => 'value2'), array('key3' => 'value3', 'key2' => 'value4')); var_dump($a);
Output for 5.1.0 - 7.1.0
array(1) { ["key1"]=> string(6) "value1" }
Output for 5.0.0 - 5.0.5
Fatal error: Call to undefined function array_diff_key() in /in/4iQ5Y on line 2
Process exited with code 255.
Output for 4.4.5 - 4.4.9
Fatal error: Call to undefined function: array_diff_key() in /in/4iQ5Y on line 2
Process exited with code 255.
Output for 4.3.2 - 4.4.4
Fatal error: Call to undefined function: array_diff_key() in /in/4iQ5Y on line 2
Process exited with code 255.
Output for 4.3.0 - 4.3.1
Fatal error: Call to undefined function: array_diff_key() in /in/4iQ5Y on line 2