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Redirecting Dynamic URLs to Keyword-Rich URLs

1.

Add this code to your

config.inc.php

file. These global associative arrays define a line of

products and categories, simulating a real product database. You’ll need the data from these

arrays to generate the keyword-rich versions of URLs automatically, using PHP code. (Arrays

are used instead of a real database to keep the exercise easier for you to follow.)

<?php

// site domain; no trailing ‘/‘ !

define(‘SITE_DOMAIN’, ‘http://seophp.example.com);

// create a fictional database with products and categories

$GLOBALS[‘products’] = array

(“45” => “Belt Sander”,

“31” => “Link Juice”,

“42” => “AJAX PHP Book”);

$GLOBALS[‘categories’] = array

(“12” => “Carpenter’s Tools”,

“6” => “SEO Toolbox”,

“2” => “Friend’s Shed”);

?>

2.

Create

include/url_redirect.inc.php

and type this code:

<?php

// load the URL factory library

require_once ‘url_factory.inc.php’;

// redirects to proper URL if not already there

function fix_category_product_url()

{

// obtain the proper URL of the current category/product page

$proper_url = get_proper_category_product_url();

// 301 redirect to the proper URL if necessary

if (SITE_DOMAIN . $_SERVER[‘REQUEST_URI’] != $proper_url)

{

header(‘HTTP/1.1 301 Moved Permanently’);

header(‘Location: ‘ . $proper_url);

exit();

}

}

// returns the proper keyword-rich URL

function get_proper_category_product_url()

{

86

Chapter 4: Content Relocation and HTTP Status Codes

c04.qxd:c04 10:40 86

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