This is a tutorial that tells the users how to build a php form to extract variables in their program. The author says to the users about the use of a generalized form handler where they should handle $FirstName even though they do not know the name of the variable. This tutorial provides informations to the users about php which has an associative array that contains the name and value pairs in a form submission. This tutorial also explains to the users about the functions of the function GetFormData, array variables and system variables for the user to make use of it for creating php form.