How do i create something like "do=banuser"14"
 

How would i go about creating the PHP code for that?

And since i want to add this to replacement variables, how do i make the userid number a variable based on the post of the replaced words?

I understand the first part, in your php script, you would have to assign the user to be banned to a variable such as $introuble['userid'] then in your html template, use:

I dont understand what you mean by adding this to replacement variables?

oh, its so people get autobanned when using inappropriate phrases or REALLY bad words like the n word.

Me thinks that will take me to the page to ban the user.I need to run a query or something that will automatically ban the user.

so if someone types a bad word, the admin can click on the word which will be a link to the ban script?

No, an autoban. Basically once the word runs through the replacement variable script it will automatically replace the word and then automatically ban the user, without running through an admin.