Question

I’m need to send params to the function

array_intersect_key()

but sometimes i’m need to send 2 arrays, sometimes – 3 or more:

array_intersect_key($arr_1, $arr_2);
OR
array_intersect_key($arr_1, $arr_2, $arr_3, $arr_4);

Answer 1

Assuming you want to create your own function like this, the key is to use func_get_args():

function mumble(){
    $args = func_get_args();
    foreach ($args as $arg){
        ... whatever
    }
}

If you just want to call it with multiple args, either “just do it”, or use call_user_func_array():

$args = array();
... append args to $args
call_user_func_array('array_intersect_key', $args);