(PHP 5, PHP 7)
array_uintersect — Computes the intersection of arrays, compares data by a callback function
$array1
, array $array2
[, array $...
], callable $value_compare_func
)Computes the intersection of arrays, compares data by a callback function.
array1The first array.
array2The second array.
value_compare_funcThe 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.
Returns an array containing all the values of array1
that are present in all the arguments.
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
)