array_uintersect

by gowtham 2010-09-17 12:20:21

array_uintersect â Computes the intersection of arrays, compares data by a callback function
Description
array array_uintersect ( array $array1 , array $array2 [, array $ ... ], callback $data_compare_func )

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

array1

The first array.
array2

The second array.
data_compare_func

The callback comparison function.

The user supplied callback function is used for comparison. 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() 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
=> brown
[0] => red
)

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