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 $array1 = array ("a" => "green", "red", "blue"); $array2 = array ("b" => "green", "yellow", "red"); $result = array_intersect ($array1, $array2);

This makes $result have array ("a" => "green", "red");

See also array_diff().