News Feed
Sections




News Archive
Looking for more information on how to do PHP the right way? Check out PHP: The Right Way

Mattias Geniar's Blog:
Input Validation Using filter_var() Over Regular Expressions
February 11, 2009 @ 07:55:30

This recent post to Mattias Geniar's blog takes a look at an alternative to trying to catch every single thing that could be filtered on user input with a regular expression - the filter_var function.

Just about the biggest time-sink on any project, is the amount of input validation that needs to be done. You _have_ to assume your visitor is a maniac serial killer, out to destroy your application. And you have to prevent it. [...] Thus starts our never-ending battle for user input validation. We can't allow it all so we check every value presented to us. But using PHP's filter_var function, this can be made 100x easier!

He includes the long list of filtering types that the function has to offer including sanitizing strings, working with special characters and validating input like email addresses, URLs and IP addresses.

0 comments voice your opinion now!
filtervar regular expressions input validation sanitize


blog comments powered by Disqus

Similar Posts

David Coallier's Blog: PEAR::Validate 0.8.0 released...THE release, finally

SpinDrop.us: Not taking frameworks for granted

Mind Tree: Testing your web application

Secunis.com: Travelsized CMS index.php Cross-Site Scripting Vulnerabilities

WeberDev.com: PHP 101 (part 13): The Trashman Cometh


Community Events

Don't see your event here?
Let us know!


yii2 api language application php7 introduction community series list opinion part2 project composer interview example symfony framework podcast laravel conference

All content copyright, 2015 PHPDeveloper.org :: info@phpdeveloper.org - Powered by the Solar PHP Framework