3v4l.org

run code in 150+ php & hhvm versions
Bugs & Features
<?php $array1 = array('description' => 'desc bla bla bla', 'summary' => 'summary bla bla bla', 'usage' => 'usage bla bla bla'); $array2 = array('description', 'summary'); $array_intersected = array_intersect(array_flip($array1), $array2); var_dump($array_intersected);
based on XE42E
Output for 4.3.0 - 7.1.0
array(2) { ["desc bla bla bla"]=> string(11) "description" ["summary bla bla bla"]=> string(7) "summary" }