Update array on every value on foreach

 foreach($_POST as $key => $val){  
                $k = $key;
                $v = $val;

                $inputs = array(
                    $k => "test"
                );
            }

Select allOpen in new window

my question is how can i update the array on every row.

k equals a diffrent id every time it goes thrught the post, but where i have test will be a function, i need them all to be redireted to this function. but it only doing the last post