(PHP 5, PHP 7)
array_uintersect_assoc — Computes the intersection of arrays with additional index check, compares data by a callback function
Computes 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.
The first array.
The second array.
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.
Returns an array containing all the values of
array1 that are present in all the arguments.
Example #1 array_uintersect_assoc() example
$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 )