Clearing _POST array fully

Question

I want clear $_POST array content fully, all examples what I see in internet, looks like this:

if (count($_POST) > 0) {
    foreach ($_POST as $k=>$v)          


        

Answer 1

It may appear to be overly awkward, but you're probably better off unsetting one element at a time rather than the entire $_POST array. Here's why: If you're using object-oriented programming, you may have one class use $_POST['alpha'] and another class use $_POST['beta'], and if you unset the array after first use, it will void its use in other classes. To be safe and not shoot yourself in the foot, just drop in a little method that will unset the elements that you've just used: For example:

private function doUnset()
{
    unset($_POST['alpha']);
    unset($_POST['gamma']);
    unset($_POST['delta']);
    unset($_GET['eta']);
    unset($_GET['zeta']);
}

Just call the method and unset just those superglobal elements that have been passed to a variable or argument. Then, the other classes that may need a superglobal element can still use them.

However, you are wise to unset the superglobals as soon as they have been passed to an encapsulated object.