array_intersect

Description

array_intersect() returns an array containing all the values of array1 that are present in all the arguments. Note that keys are preserved.

Example 1. array_intersect() example <?php $array1 = array("a" => "green", "red", "blue"); $array2 = array("b" => "green", "yellow", "red"); $result = array_intersect($array1, $array2); ?> This makes $result have Array ( [a] => green [0] => red )

See also array_intersect_assoc(), array_diff(), and array_diff_assoc().