PHP access to inbound email contents?

I am seeking the ability to receive an email (each email will have unique contents), parse it, and then take action based on the parsed contents.

Is there a way that a PHP web page can recognize the receipt of an email and gain access to the contents of that email?

Thanks!

I've never had to do this before, but you can get PHP to check a POP3 mailbox for new messages.

// To connect to a POP3 server on port 110 on the local server, use:
$mbox = imap_open ("{localhost:110/pop3}INBOX", "user_id", "password");

Some other functions to read up on are:
imap_check - Checks for new messages
imap_fetchbody - get the contents of the message body

From those two functions, you should be able to do what you need. They are documented in the PHP manual.

Thank you very much. This is exactly what I was looking for.