Services_W3C_CSSValidator pear.php.net Web Services BSD An Object Oriented Interface to the W3C CSS Validator service. This package provides an object oriented interface to the API of the W3 CSS Validator application (http://jigsaw.w3.org/css-validator/). With this package you can connect to a running instance of the validator and retrieve the validation results (true|false) as well as the errors and warnings for a a style sheet. By using the SOAP 1.2 output format from the validator, you are returned simple objects containing all the information from the validator.