News Feed
Jobs Feed
Sections




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

Brandon Savage's Blog:
FIEO Filtering Input with PHP's Filter Functions
August 28, 2009 @ 08:55:03

Brandon Savage has a new post about a key concept that both new and experienced developers need to remember when working with user input - Filter Input, Escape Output (FIEO).

Brand-new PHP developers have drilled into their heads the concept of Filter Input, Escape Output (FIEO). This concept essentially insists that all user-provided content be filtered or escaped, without exception. With the delivery of PHP 5.2.0, this got a lot easier, because PHP included, by default, the Filter library.

He gives two examples of an email validation method - one using a regular expression and the other using the filter_var function of the filter extension with the FILTER_VALIDATE_EMAIL constant for the type.

0 comments voice your opinion now!
filter input output extension


blog comments powered by Disqus

Similar Posts

PHPMaster.com: Tracking Upload Progress with PHP and JavaScript

Nexen.net: The Month of PHP Security Overview

Derick Rethans: Understanding Valgrind errors (1)

Community News: An Effort to Deprecate the MySQL Extension

Zend Developer Zone: PHP Abstract Podcast Episode 27: Introducing PECL Picks


Community Events











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


security release introduction package hhvm podcast unittest project framework symfony2 composer hack facebook install threedevsandamaybe application database performance language component

All content copyright, 2014 PHPDeveloper.org :: info@phpdeveloper.org - Powered by the Solar PHP Framework