Today, almost everything on the web is based on user input. A contact form, a user registration form, a search box and so on. As a developer you can’t just rely on the user to write everything as it’s supposed to be. To be sure you always get the correct data from your users you will need to validate the input. Read on to find out how..
In this tutorial you will learn how various data is supposed to be structured and how to validate this data. Note that these methods may not be the best out there or the most complete solutions.
View Tutorial (Source:http://active.tutsplus.com)
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