(PHP 5, PHP 7)
array_uintersect_assoc — Computes the intersection of arrays with additional index check, compares data by a callback function
$array1
, array $array2
[, array $...
], callable $value_compare_func
) : arrayComputes the intersection of arrays with additional index check, compares data by a callback function.
Note that the keys are used in the comparison unlike in array_uintersect(). The data is compared by using 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_assoc() example
<?php
$array1 = array("a" => "green", "b" => "brown", "c" => "blue", "red");
$array2 = array("a" => "GREEN", "B" => "brown", "yellow", "red");
print_r(array_uintersect_assoc($array1, $array2, "strcasecmp"));
?>
The above example will output:
Array
(
[a] => green
)