PHP Form data being passed in URL?

[Anon]

Please Help! I'm new at this.
I have a simple html form.
I have tried using both action=post & get.
Both seem to pass the form data to the process_form.php file via the URL which ends up in the browser history.

If every thing that the user enters into the form is now in the browser history - then it is a security problem.
i.e. credit card info being sent from the office or a public computer.
"http://295.68.2.178/process_form.php?
name=Bob+Smith&cardnumber=1234876598767890"
What am I doing wrong? Or how can this be avoided?

[Anon]

method="post"
not action="post"
action should be action="process_form.php"