3v4l.org

run code in 300+ PHP versions simultaneously
<?php $array1 = array("a" => "green", "b" => "brown", "c" => "blue"); $array2 = array("a" => "green", "c" => "blue2", "d" => "cyan"); $array1 = array_intersect_key($array1, $array2); print_r($result); $result = array_intersect_key($array2, $array1); print_r($result);
Output for 8.0.0 - 8.0.30, 8.1.0 - 8.1.28, 8.2.0 - 8.2.18, 8.3.0 - 8.3.6
Warning: Undefined variable $result in /in/I7dVE on line 5 Array ( [a] => green [c] => blue2 )
Output for 5.1.0 - 5.1.6, 5.2.0 - 5.2.17, 5.3.0 - 5.3.29, 5.4.0 - 5.4.45, 5.5.0 - 5.5.38, 5.6.0 - 5.6.28, 7.0.0 - 7.0.20, 7.1.0 - 7.1.10, 7.2.0 - 7.2.33, 7.3.12 - 7.3.31, 7.4.0 - 7.4.33
Notice: Undefined variable: result in /in/I7dVE on line 5 Array ( [a] => green [c] => blue2 )
Output for 7.3.32 - 7.3.33
Array ( [a] => green [c] => blue2 )
Output for 5.0.0 - 5.0.5
Fatal error: Call to undefined function array_intersect_key() in /in/I7dVE on line 4
Process exited with code 255.
Output for 4.4.5 - 4.4.9
Fatal error: Call to undefined function: array_intersect_key() in /in/I7dVE on line 4
Process exited with code 255.
Output for 4.3.2 - 4.3.11, 4.4.0 - 4.4.4
Fatal error: Call to undefined function: array_intersect_key() in /in/I7dVE on line 4
Process exited with code 255.
Output for 4.3.0 - 4.3.1
Fatal error: Call to undefined function: array_intersect_key() in /in/I7dVE on line 4
preferences:
219.35 ms | 401 KiB | 354 Q