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the individual product pages. These URLs are “hackable,” in that the products will be placed in an

intuitive-looking directory structure. Users can intuitively modify such URLs to navigate the site.

Rewriting Keyword-Rich URLs

1.

Modify the

.htaccess

file in your

seophp

folder like this:

RewriteEngine On

# Rewrite numeric URLs

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

i

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

# Rewrite keyword-rich URLs

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

i

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

2.

Load

http://seophp.example.com/Products/Tools-C5/Super-Drill-P9.html

, and

voila, you should get the result that’s shown in Figure 3-12.

Figure 3-12

You currently have two rules in your

.htaccess

file, and they are working beautifully!

The new rule matches URLs that start with the string

Products/

, then contain a number of zero or more

characters (

.*

) followed by

–C

. This is expressed by

^Products/.*-C

. The next characters must be one

or more digits, which as a whole are saved to the

$1

variable, because the expression is written between

parentheses —

([0-9]+)

. This first variable in the URL,

$1

, is the category ID.

After the category ID, the URL must contain a slash, then zero or more characters (

.*

), then

-P

, as expressed

by

/.*-P

. Afterward, another captured group follows, to extract the ID of the product,

([0-9]+)

, which

becomes the

$2

variable. The final bit of the regular expression,

\.html$

, specifies the URL needs to end

in

.html

.

The two extracted values,

$1

and

$2

, are used to create the new URL,

/product.php?category_id=

$1&product_id=$2

. Figure 3-13 describes the process visually.

65

Chapter 3: Provocative SE-Friendly URLs

c03.qxd:c03 10:39 65

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