Computes the intersection of arrays with additional index check, compares data by a callback function

array_udiff
array_uintersect_uassoc
Array Functions
PHP Manual

# array_uintersect_assoc

(PHP 5)

array_uintersect_assoc — Computes the intersection of arrays with additional index check, compares data by a callback function

### Description

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

Computes the intersection of arrays with additional index check, compares data by a callback function.

Note that the keys are used in the comparison unlike in array_uintersect(). The data is compared by using a callback function.

### Parameters

`array1`

  The first array.

`array2`

  The second array.

`data_compare_func`

  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.

### Return Values

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

### Examples

Example #1 array_uintersect_assoc() example

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

The above example will output:

    Array
    (
        [a] => green
    )

### See Also

- array_uintersect() - Computes the intersection of arrays, compares data by a callback function
- array_intersect_assoc() - Computes the intersection of arrays with additional index check
- array_intersect_uassoc() - Computes the intersection of arrays with additional index check, compares indexes 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_udiff
array_uintersect_uassoc
Array Functions
PHP Manual