Data Sanitization in PHP

Can someone recommend an up to date library for data Sanitization in PHP ?

I am looking for a library that proposes a set of functions for data sanitization. Email validation/sanitization (remove those %0A, \r...), strip htlm (stripslashes(htmlentities), remove script, SQL injection … any form of exploit related to data submitted by users.

CakePHP sanitization class (not the "framework") looks nice.. ?

From stackoverflow

• Check out PHP Filter

  Török Gábor : Or directly the official manual entry of PHP's Data Filtering: http://www.php.net/filter

• CakePHP is a framework, not a sanitation library.

  It's probably easier to just write your own sanitization functions.

  Joe Philllips : Fair enough, I didn't follow the link.

• Zend Filter, Zend Filter Input and Zend_Validate

• There is no such thing as data sanitization. Data isn't dangerous on it self - it's the context in which it's used, that makes it safe or unsafe. That means that it is pointless to try and validate/sanitize data on entry. Instead, your should escape it properly on output. See also my answer here.

  rick : If you need to allow markup in input, but you don't want xss attacks, then it's not "pointless" to validate/sanitize data on entry. Why would you store dangerous input?

  troelskn : I consider that an edge case and I'd use HtmlPurifier for that.

• For filtering out xss attacks when you need to preserve html markup: htmlpurifier

  If you don't need to keep html markup, you can use htmlspecialchars or htmlentities