Hi,

 

Check this..

 

Article :

 

http://www.lynda.com/articles/send-email-from-a-web-form-with-php

 

Video :

 

https://www.youtube.com/watch?v=WWbKBe49hVc 

There are several ways exist to sent email, either you can use your own SMTP server OR you can use any other SMTP server API that is available on web. 

 

Try the below stack overflow discussion if you want use Gmail API:

 

http://stackoverflow.com/questions/712392/send-email-using-the-gmail-smtp-server-from-a-php-page 

 

For basic tutorial in PHP you can try the below google search:

 

https://www.google.co.in/webhp?sourceid=chrome-instant&ion=1&espv=2&ie=UTF-8#q=send+email+using+php 

 

Hope this helps a bit!