The SUBMIT Button
The SUBMIT button on a form looks quite innocent. However, you need to know a bit of PHP programming (although you probably could use another web language such as Perl) there is often a lot "going on" behind the scenes when you press or click it.
Generally, the SUBMIT button involks a form handler or some description. This "handler" is responsible for what happens. This, again, generally, is what happens to the data that has been entered into a form. This data can be used in many ways, it could be the response to a survey or it could be contact or booking form. A response to the pressing of the SUBMIT button is usually expected and the actions that follow can include the sendng of an email and/or the entry of the data into a database.
Form Handlers
This is a complex issue. Or it can be. The construction of a functioning form is not as easy as many would make out.