3v4l.org

run code in 200+ php & hhvm versions
Bugs & Features
<?php $a = array(1,2,3,4,5,6,7,9,8,1,2,3,4,5,6,7,9,8,1,2,3,4,5,6,7,9,8,1,2,3,4,5,6,7,9,8,1,2,3,4,5,6,7,9,8,1,2,3,4,5,6,7,9,8,1,2,3,4,5,6,7,9,8,1,2,3,4,5,6,7,9,8,1,2,3,4,5,6,7,9,8,1,2,3,4,5,6,7,9,8,1,2,3,4,5,6,7,9,8,1,2,3,4,5,6,7,9,8,1,2,3,4,5,6,7,9,8,1,2,3,4,5,6,7,9,8,1,2,3,4,5,6,7,9,8,1,2,3,4,5,6,7,9,8,1,2,3,4,5,6,7,9,8,1,2,3,4,5,6,7,9,8,1,2,3,4,5,6,7,9,8,1,2,3,4,5,6,7,9,8,1,2,3,4,5,6,7,9,8,1,2,3,4,5,6,7,9,8,1,2,3,4,5,6,7,9,8,1,2,3,4,5,6,7,9,8,1,2,3,4,5,6,7,9,8,1,2,3,4,5,6,7,9,8,1,2,3,4,5,6,7,9,8,1,2,3,4,5,6,7,9,8,1,2,3,4,5,6,7,9,8,1,2,3,4,5,6,7,9,8,1,2,3,4,5,6,7,9,8,1,2,3,4,5,6,7,9,8,1,2,3,4,5,6,7,9,8,1,2,3,4,5,6,7,9,8,1,2,3,4,5,6,7,9,8,1,2,3,4,5,6,7,9,8,1,2,3,4,5,6,7,9,8,1,2,3,4,5,6,7,9,8,1,2,3,4,5,6,7,9,8,1,2,3,4,5,6,7,9,8,1,2,3,4,5,6,7,9,8,1,2,3,4,5,6,7,9,8,1,2,3,4,5,6,7,9,8,1,2,3,4,5,6,7,9,8,1,2,3,4,5,6,7,9,8,1,2,3,4,5,6,7,9,8,1,2,3,4,5,6,7,9,8); $b = array(1,2,3,4,5,6,7,9,8,1,2,3,4,5,6,7,9,8,1,2,3,4,5,6,7,9,8,1,2,3,4,5,6,7,9,8,1,2,3,4,5,6,7,9,8,1,2,3,4,5,6,7,9,8,1,2,3,4,5,6,7,9,8,1,2,3,4,5,6,7,9,8,1,2,3,4,5,6,7,9,8,1,2,3,4,5,6,7,9,8,1,2,3,4,5,6,7,9,8,1,2,3,4,5,6,7,9,8,1,2,3,4,5,6,7,9,8,1,2,3,4,5,6,7,9,8,1,2,3,4,5,6,7,9,8,1,2,3,4,5,6,7,9,8,1,2,3,4,5,6,7,9,8,1,2,3,4,5,6,7,9,8); $c = array(1,2,3,4); $d = array(2,4); //print_r($x); //print_r($y); $x = array_flip($a); $y = array_flip($b); $x = array_intersect_key($x, $y); // 2 4 $x = array_flip($x); //$y = array_flip($y); //$x = array_intersect($a,$b); //print_r($result2); print_r($x); //print_r($result3); ?>
based on ujONQ
Output for 5.1.0 - 7.2.0
Array ( [414] => 1 [415] => 2 [416] => 3 [417] => 4 [418] => 5 [419] => 6 [420] => 7 [421] => 9 [422] => 8 )
Output for 5.0.0 - 5.0.5
Fatal error: Call to undefined function array_intersect_key() in /in/OFJGu on line 14
Process exited with code 255.
Output for 4.4.5 - 4.4.9
Fatal error: Call to undefined function: array_intersect_key() in /in/OFJGu on line 14
Process exited with code 255.
Output for 4.3.2 - 4.4.4
Fatal error: Call to undefined function: array_intersect_key() in /in/OFJGu on line 14
Process exited with code 255.
Output for 4.3.0 - 4.3.1
Fatal error: Call to undefined function: array_intersect_key() in /in/OFJGu on line 14