110627 PHP Badword filter

Using a modified RSSGM php script to auto generate pages based on user inputed keyword. Need a script to check the keyword against a list of predetermined words to display the correct ad module. For example, if the user chooses a drug-related keyword that is in the badword text file filter, instead of showing the default adsense module, it would display a link to an affiliate drug program. There would be three or more categories: porn, drugs, gambling, etc. Ideally the [login to view URL] file would be set up with the keyword and a link to the correct ad file, for example: blackjack,[login to view URL] If the keyword is not found in the [login to view URL] file, then the default ad module is displayed. This script needs to be able to access the [login to view URL] file on a central location on the server, not an individual install on each domain or folder. Coder is to supply a tested and working script ready to install on our server.