What is the difference between $_post and $_get. which is better one which can be used for forms.

Always use POST on form data. The only time you really want to use GET data is say....you have a registration with a referral, but people can link other poeple registration with their referral automatically filled out...you would need $_GET for that. Which I guess is kinda using it for post data, but only before it's posted...

Generally...if you can do it with post data, do it.

I totally agree. For one thing, you can send a LOT more data with a $_POST, and the data doesn't show up in the address bar.

I agree with the others..

GEt will send the data via the uri

yourpage.php?first=value1&second=value2

GET may also be good for search forms so the visitor can bookmark the search url