# array_uintersect

(PHP 5)

array_uintersect — Computes the intersection of arrays, compares data by a callback function

### Description

array array_uintersect ( array `$array1` , array `$array2` [, array `$ ...` ], callback `$data_compare_func` )

array_uintersect() returns an array containing all the values of `array1` that are present in all the arguments. The data is compared by using a callback function.

Example#1 array_uintersect() example

`<?php
$array1 = array("a" => "green", "b" => "brown", "c" => "blue", "red");
$array2 = array("a" => "GREEN", "B" => "brown", "yellow", "red");
print_r(array_uintersect($array1, $array2, "strcasecmp"));
?>`

The above example will output:

    Array
    (
        [a] => green
        [b] => brown
        [0] => red
    )

For comparison is used the user supplied callback function. It must return an integer less than, equal to, or greater than zero if the first argument is considered to be respectively less than, equal to, or greater than the second.

See also array_intersect(), array_uintersect_assoc(), array_intersect_uassoc() and array_uintersect_uassoc().