Array Functions
PHP Manual

array_uintersect

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

Description

array array_uintersect ( array $array1 , array $array2 [, array $... ], callable $value_compare_func )

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

Parameters

array1

The first array.

array2

The second array.

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. Note that before PHP 7.0.0 this integer had to be in the range from -2147483648 to 2147483647.

int callback ( mixed $a, mixed $b )

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
    [b] => brown
    [0] => red
)

See Also

  • array_intersect
  • array_intersect_assoc
  • array_uintersect_assoc
  • array_uintersect_uassoc