Remove unwanted characters from POST submit values
<?php
// Remove formatting MobilePhone
function getMobile() {
$remove_chars = array("(", ")" , "-") ; // unwanted chars array
$formatted_phone = filter_input(INPUT_POST, "MobilePhone") ;
$mobile_number = str_replace($remove_chars, "", $formatted_phone); // remove dashes, replace with empty string
return $mobile_number ;
}