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For rewriting two parameters, the rule would be a bit longer, but not much more complex:

RewriteRule ^Products/C([0-9]*)/P([0-9]*)\.html$

i

/product.php?category_id=$1&product_id=$2 [L]

Go ahead and put this to work in a quick exercise.

Rewriting Numeric URLs

1.

In your

seophp

folder, modify the

product.php

script that you created earlier like this:

<?php

// display product details

echo ‘You have selected product #‘ . $_GET[‘product_id’] .

‘ from category #‘ . $_GET[‘category_id’];

?>

2.

Test your script by loading

http://seophp.example.com/product.php?category_

id=5&product_id=99

in your web browser. You should get the expected output as shown

in Figure 3-9.

Figure 3-9

3.

Change the current rewriting rule in your

.htaccess

file as shown in the following code. Also

remove any old rules, because they wouldn’t work well with the new

product.php

script,

which receives two parameters now.

RewriteEngine On

# Rewrite numeric URLs

RewriteRule ^Products/C([0-9]*)/P([0-9]*)\.html$

i

/product.php?category_id=$1&product_id=$2 [L]

Note that the entire

RewriteRule

command and its parameters must be written on a single line in

your

.htaccess

file. If you split it in two lines as printed in the book, you’ll get a 500 error from the

web server when trying to load scripts from that folder.

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Chapter 3: Provocative SE-Friendly URLs

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