Trying to add header/footer to this page.

[ChrisjChrisj]

I have header and footer showing on most web pages, but not this one added later. I tried copying a few lines from another page that HAS the header and footer appearing, but got many errors which I've listed below. (The page code shown below I've extracted some lines of private data)
Any help with trying to add header and footer to it will be appreciated.

Working page without header/footer:

<?php

// Get Details
$amount = $_POST['valu'];
$credits = $_POST['cre'];
$user_id = $_POST['uid'];
$item_name = $_POST['itnm'];     

// Include the paypal library
include_once ('Paypal.php');

// Create an instance of the paypal library
$myPaypal = new Paypal();

// Specify your paypal email

// Specify the url where paypal will send the user on success/failure

// Specify the url where paypal will send the IPN

// Specify the product information
$myPaypal->addField('item_name', $item_name);  
$myPaypal->addField('amount', $amount);
$myPaypal->addField('item_number', $credits);

// Specify any custom value
$myPaypal->addField('custom', $user_id);

// Enable test mode if needed
///$myPaypal->enableTestMode();

// Go
$myPaypal->submitPayment();

Added some lines from other page that has header/footer as an attempt,
but got errors:

<?php
(include_once ('classes/config.php'); 
(include_once ('classes/sessions.php');
// Get Details
$amount = $_POST['valu'];
$credits = $_POST['cre'];
$user_id = $_POST['uid'];
$item_name = $_POST['itnm'];     

// Include the paypal library
include_once ('Paypal.php');

// Create an instance of the paypal library
$myPaypal = new Paypal();

// Specify your paypal email

// Specify the url where paypal will send the user on success/failure

// Specify the url where paypal will send the IPN

// Specify the product information
$myPaypal->addField('item_name', $item_name);  
$myPaypal->addField('amount', $amount);
$myPaypal->addField('item_number', $credits);

// Specify any custom value
$myPaypal->addField('custom', $user_id);

// Enable test mode if needed
///$myPaypal->enableTestMode();

// Go
$myPaypal->submitPayment();

The errors were:
Warning: include_once(classes/config.php) [function.include-once]: failed to open stream: No such file or directory in /home/public_html/payment/thispage.php on line 3

Warning: include_once() [function.include]: Failed opening 'classes/config.php' for inclusion (include_path='.:/usr/lib/php:/usr/local/lib/php') in /home/public_html/payment/thispage.php on line 3

Warning: include_once(classes/sessions.php) [function.include-once]: failed to open stream: No such file or directory in /home/public_html/payment/thispage.php on line 4

Warning: include_once() [function.include]: Failed opening 'classes/sessions.php' for inclusion (include_path='.:/usr/lib/php:/usr/local/lib/php') in /home/public_html/payment/thispage.php on line 4

Any help/thoughts/suggestions will be appreciated.

[Mittineague]

It sounds like a path, spelling/case problem. What depth are the files that are including OK, and what depth (i.e. under what folder) is the one with the problem?

[ChrisjChrisj]

Thanks for your reply.
To reply to you there are no files that are "including OK"
The file that shows no header and footer is in a folder named Payment.

[Mittineague]

You mean

header and footer showing on most web pages, but not this one added later. I tried copying a few lines from another page that HAS the header and footer appearing,

are not includes, but hard-coded in the pages?

For PHP to find the included files, they either need to be under the directory the file is in

<?php
include_once 'classes/config.php'; 
include_once 'classes/sessions.php';

(your code has extra "("s and you don't need any for the language construct. include_once is not a function.)

Or you could try ini_set-ting the path

<?php
ini_set(
    'include_path', ini_get('include_path') . ":" .
        $_SERVER['DOCUMENT_ROOT'] . "/path-to-includes/");
include_once 'classes/config.php'; 
include_once 'classes/sessions.php';

using ":" or ";" and "/" or "\" depending on your server. Judgiing from the error messages, it doesn't look like you have a Windows server so the above should work for you.