array_uintersect_uassoc
array_unique
Array Functions
PHP Manual

# 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 `$...` ], callable `$value_compare_func` )

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

### Parameters

`array1`

  The first array.

`array2`

  The second array.

`value_compare_func`

  The comparison function 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.

  int callback ( mixed `$a`, mixed `$b` )

### Return Values

Returns an array containing all the values of `array1` that are present in all the arguments.

### Examples

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
    )

### See Also

- array_intersect() - Computes the intersection of arrays
- array_intersect_assoc() - Computes the intersection of arrays with additional index check
- array_uintersect_assoc() - Computes the intersection of arrays with additional index check, compares data by a callback function
- array_uintersect_uassoc() - Computes the intersection of arrays with additional index check, compares data and indexes by a callback functions

array_uintersect_uassoc
array_unique
Array Functions
PHP Manual