Using the
include or
require
statements we can also perform cross domain scripting from one server,
to a completely different server. This comes in handy when you are
looking to create PHP processing scripts and engines that nobody can
view the source to but you. It remains on your server but you can allow
other sites to connect to it. Maybe even for a fee if the application
performs some cool task that helps people's business.
Here is an example of placing a full URL to perform PHP scripting
between two servers.
<?php
// include a script into another script from another server
include "http://www.yourwebsite.com/yourScript.php";
?>
And here is an example of sending variables through the URL string to
the script waiting to be included. That script can then process and
return values and information according to those variables.
<?php
// include a script into a caller script from another server, and send variables
include "http://www.yourwebsite.com/yourScript.php?name=John&pin=8558";
?>
Since the
include,
require,
require_once, and
include_once
statements all work in a similar way, all four could be used to script
from one server to another using PHP. Here are alternate ways of writing
the inclusion.
<?php
include "http://www.yourwebsite.com/yourScript.php?name=John&pin=8558";
include_once "http://www.yourwebsite.com/yourScript.php?name=John&pin=8558";
require "http://www.yourwebsite.com/yourScript.php?name=John&pin=8558";
require_once "http://www.yourwebsite.com/yourScript.php?name=John&pin=8558";
// Or you may see them wrapped in parenthesis like this:
include ("http://www.yourwebsite.com/yourScript.php?name=John&pin=8558");
// Which is not required but will also not break the script
// include and require are not functions, they are language constructs
// so the parenthesis are not needed at all at this time
?>
