array_uintersect

(PHP 5, PHP 7, PHP 8)

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

Description

array_uintersect(array $array, array ...$arrays, callable $value_compare_func): array

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

Parameters

array

The first array.

arrays

Arrays to compare against.

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.

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

Return Values

Returns an array containing all the values of array 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