PHP Iterate through $_POST and use values by name

Question

I have a form that contains a number of fields with names item1, item2, item13, item43 etc, each time those fields are different because they are populated in the form with AJAX

Answer 1

Try:

foreach($_POST as $key=>$value){
    inserttag($key, $value);
}

$key will be the name of the element and $value will be the value.