Replace Keyword with URL

[dunhillblue]

Hi,

 

Does anybody have a php script that they might be able to share which does the following.

 

I would like to call this script which will replace all keywords with a URL's, I want to do this for internal linking.

 

e.g

 

all "Cars" words will have a hyperlink to http://www.mysamplesite.com/cars.php

all "Motorbike" words will have a hyperlink to http://www.mysamplesite.com/motorbike.php

 

etc - etc

[jackpf]

Regex.

 

Something like this-

$exist = array(
'/cars/',
'/bikes/'
);
$replace = array(
'<a href="http://www.example.com/cars">cars</a>',
'<a href="http://www.example.com/bikes">bikes</a>',
);

echo preg_replace($exist, $replace, 'cars and bikes');