Dear Nairalanders,
I was asked to create an adult content filter system as my final project and am actually thinking of using php. So i would like to know how possible this is. Thank you.

Yes its possible.

since its a final year project, you will need to be ready to read some lil statistics or master a php library.

The idea is to:
[list]
[li]get yourself articles on bayesian text classification and fully understand what its all about.
[/li]
[li] download a PHP library Naive Bayes Classifier. search for this.
[/li]
[li]get or create an archive of text which you can classify as either general or adult. the whole point is to have something to train your application on
[/list]

you can work with that.

The key words: Naive Bayesian, text classification