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(PHP 5)

array_intersect_uassoc -- Computes the intersection of arrays with additional index check, compares indexes by a callback function

Description

array array_intersect_uassoc ( array array1, array array2 [, array ..., callback key_compare_func] )

array_intersect_uassoc() returns an array containing all the values of array1 that are present in all the arguments. Note that the keys are used in the comparison unlike in array_intersect() .

The index comparison is done by a 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.

Example 1. array_intersect_uassoc() example

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

print_r(array_intersect_uassoc($array1, $array2, "strcasecmp"));
?>

The above example will output:

Array
(
    [b] => brown
)

Related Function(s)

array_intersect()

array_intersect_assoc()

array_uintersect_assoc()

array_uintersect_uassoc()

array_intersect_key()

array_intersect_ukey()