Sending Mail on Form Submission
You've already seen how to take form responses and print the results to the screen. You're only one step away from sending those responses in an email message, as you'll soon see. Before learning about sending mail, however, read through the next section to make sure that your system is properly configured.
System Configuration for the mail() Function
Before you can use the mail() function to send mail, a few directives must be set up in the php.ini file so that the function works properly. Open php.ini with a text editor and look for these lines:
[mail function] ; For Win32 only. SMTP = localhost ; For Win32 only. sendmail_from = firstname.lastname@example.org ; For Unix only. You may supply arguments as well (default: "sendmail ...