3v4l.org

run code in 300+ PHP versions simultaneously
<?php $size = 100; $b = array(); for ($i = 0; $i < $size; $i++) { $b[] = chr(rand(64,128)); } $a = array(0,3,4,2,6); for ($i = 0; $i < 10000; $i++) { //$c = array_intersect_key($b, array_flip($a)); $c = array(); foreach ($a as $akey) { $c[] = $b[$akey]; } }
Output for 4.3.0 - 4.3.11, 4.4.0 - 4.4.9, 5.0.0 - 5.0.5, 5.1.0 - 5.1.6, 5.2.0 - 5.2.17, 5.3.0 - 5.3.29, 5.4.0 - 5.4.45, 5.5.24 - 5.5.35, 5.6.7 - 5.6.28, 7.0.0 - 7.0.20, 7.1.0 - 7.1.33, 7.2.0 - 7.2.25, 7.3.0 - 7.3.12, 7.4.0
preferences:
151.05 ms | 404 KiB | 220 Q