3v4l.org

run code in 150+ php & hhvm versions
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<?php $array1 = array("a" => "green", "b" => "brown", "c" => "blue"); $array2 = array("a" => "green", "c" => "blue2", "d" => "cyan"); $result = array_diff_keys($array1, $array2); print_r($result);
Output for 7.0.0 - 7.1.0
Fatal error: Uncaught Error: Call to undefined function array_diff_keys() in /in/fLv4I:4 Stack trace: #0 {main} thrown in /in/fLv4I on line 4
Process exited with code 255.
Output for 5.0.0 - 5.6.28
Fatal error: Call to undefined function array_diff_keys() in /in/fLv4I on line 4
Process exited with code 255.
Output for 4.4.5 - 4.4.9
Fatal error: Call to undefined function: array_diff_keys() in /in/fLv4I on line 4
Process exited with code 255.
Output for 4.3.2 - 4.4.4
Fatal error: Call to undefined function: array_diff_keys() in /in/fLv4I on line 4
Process exited with code 255.
Output for 4.3.0 - 4.3.1
Fatal error: Call to undefined function: array_diff_keys() in /in/fLv4I on line 4