syntax of php

phg  code is executed on the server, and the plain html  result is  sent to the user  browser.

php scripting  code starts with
 this is latest version only that means 5.2.9
<?php and ends with ?>

if u want excute the short tags that means old syntax <? ..?>

u modify the php.ini settings then short tags are working

use of php

Php is a powerful tool for making  a dynamic  and  interactive  web pages php is a server side scripting language and php scripts are excuted on  the server .

its supports to many databases  like mysql,oracle,sql, informix, sybase,sollid,  and postgresql etc.