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