How To View A Websites Index.php File

i wish i could hack my school site >: D

Me 2 , me 2

Some of html eg : some code required a DB

You can't see the code !

Press CTRL + U

in google chrome, go to view-source:yoursite/index.php , which will give you source in html ofcourse, not php.

The PHP source cannot be read client-side.
PHP is post-processing, it will process the PHP source and output the HTML etc to the client, not the PHP itself.

What kind of information can you find in an index.php?

It's impossible to see its source that way, PHP is server-sided, so the server executes the code each time you visit the 'index.php' page. It can contain html code, and you can see it but PHP code is different. My knowledge says that you should deface a website to see all files hosted there and download the php files that you would like to and see its source.