Shoutbox

Hi, i need some help with PHP...

as you know, PHP allows you to include files in a similar way as C's #include......

Well, i want to know a way to detect if a file is being included or if it is called directly in the browser...

Example:

I have 2 files: a.php and b.php . In b.php i have:

code:

---

include 'a.php';

---

and I want to write some code to produce an error when the user goes to http://my_server/a.php but that everything goes well when the page is loaded through b.php


Thanks

in a.php

code:

---

<?
include('error.php');
// or insert your own error page in here
?>

---

in b.php

code:

---

<?
include('thepageyouwantthemtogoto.php');
?>

---

Or do you mean when they access a.php from http://my_server.com/a.php its an error but when it is accessed from http://my_server.com/b.php it runs the correct a.php page, if so you might wanna try $_SERVER['HTTP_REFERER']

quote:

---

Originally posted by hmaster
Or do you mean when they access a.php from http://my_server.com/a.php its an error but when it is accessed from http://my_server.com/b.php it runs the correct a.php page, if so you might wanna try $_SERVER['HTTP_REFERER']

---

i think it's something like that... a.php contains code needed by b.php, but it should produce an error when accessed alone.

how does that $_SERVER['HTTP_REFERER'] work? is it the url that the user is requesting to apache?

No, you have to compare the constant __FILE__ with $_SERVER['PHP_SELF'].

__FILE__ will always be the physical filename, and PHP_SELF the running filename to which all are included.

A friend (Zero1) has told me you need to create a session
I have no idea how to work it (im still figuring it out) if you wanna have a crack at it
http://php.net/session_start

Oh and he said example 1 should really do what you want to do

thanks you, guys... I tihnk KS' solution will do the work

quote:

---

Originally posted by hmaster
A friend (Zero1) has told me you need to create a session
I have no idea how to work it (im still figuring it out) if you wanna have a crack at it
http://php.net/session_start

Oh and he said example 1 should really do what you want to do

---

What kind of dodgy way is that? Why do something like that when it can be accomplised like this:

a.php

code:

---

<?php
if(!defined("IN_SCRIPT"))
{
    die("You can't call this file directly");
}
... your code here
?>

---

b.php

code:

---

<?php
define("IN_SCRIPT", 1);

.. your code here
?>

---

Easy!

quote:

---

Originally posted by hmaster
A friend (Zero1) has told me you need to create a session

---

quote:

---

Originally posted by hmaster
Oh and he said example 1 should really do what you want to do

---

I'm quite afraid your friend is kidding you. The example doesn't work as Choli expects, for sure. And sessions don't have anything to do with includes...

quote:

---

Originally posted by Chris Boulton
Easy!

---

But a dirty workaround anyway
There is also a function that tells you how many includes there have been, then break on zero.. but that's too much of a hassle.

quote:

---

Originally posted by Chris Boulton

quote:

---

Originally posted by hmaster
A friend (Zero1) has told me you need to create a session
I have no idea how to work it (im still figuring it out) if you wanna have a crack at it
http://php.net/session_start

Oh and he said example 1 should really do what you want to do

---

What kind of dodgy way is that? Why do something like that when it can be accomplised like this:

a.php

code:

---

<?php
if(!defined("IN_SCRIPT"))
{
    die("You can't call this file directly");
}
... your code here
?>

---

b.php

code:

---

<?php
define("IN_SCRIPT", 1);

.. your code here
?>

---

Easy!

---

I tought on that, but i'd like not to modify the file where the include statment is. (also, because there are many files that include the "a.php" file, and those files may be changed by others than me )

Thanks anyway, Chris.

Okay, you could do:

code:

---

<?php
if($_SERVER['SCRIPT_FILENAME'] == "a.php")
{
  die("Go away");
}
?>

---

That would work too