How do i create an email this page form for my website?

Question

I was looking on how to create a recommend this page form that sends the given pages URL address and where the user can enter their email address and a message however long and a single email address or multiple addresses where the user wants to send the recommend this page to.

I was wondering if anyone knew what code I could use. I am currently using PHP as my server side language.

I wanna know how to code my own form?

Answer 1

That's a pretty broad question but essentially to do this with PHP, you will need to be familiar with 3 things:

$_POST array in PHP - holds all form values on the page posted back to the server

mail() PHP function

CAPTCHA implementation for verifying real users

Updated for Frank's spammer comment.

Answer 2

http://www.addthis.com/ offers a free service we've used with clients a couple of times