A PHP HTML-input-filtering library.
Read more: http://code.iamcal.com/php/lib_filter/
When submitting patches or pull-requests, bonus points are given for adding test cases.
This library has been used in many projects and frameworks, ported to other languages and used as the basis for other filtering libraries. For instance:
- Symfony plugin: https://github.com/studioskylab/skValidatorHTMLPlugin