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