3v4l.org

run code in 200+ php & hhvm versions
Bugs & Features
<?php $a = [1,2,2,3,3,3,4,4,4,4]; $b = [2,3,5]; var_dump( array_intersect($a, $b), // [2,2,3,3,3] array_intersect($b, $a) // [2,3] );
Output for 5.4.0 - 5.6.30, hhvm-3.10.1 - 3.21.0, 7.0.0 - 7.2.6
array(5) { [1]=> int(2) [2]=> int(2) [3]=> int(3) [4]=> int(3) [5]=> int(3) } array(2) { [0]=> int(2) [1]=> int(3) }
Output for 4.4.2 - 4.4.9, 5.1.0 - 5.3.29
Parse error: syntax error, unexpected '[' in /in/8ig5r on line 2
Process exited with code 255.
Output for 4.3.0 - 4.3.1, 4.3.5 - 4.4.1, 5.0.0 - 5.0.5
Parse error: parse error, unexpected '[' in /in/8ig5r on line 2
Process exited with code 255.
Output for 4.3.2 - 4.3.4
Parse error: parse error in /in/8ig5r on line 2
Process exited with code 255.