The Importance of Validation in PHP

Validation in PHP

Recently, a lot of important data is stored on the Web. However, many users miss some possibilities to make it more protected. In this review, we have identified how helpful can be data validation in PHP as well as learn some related information as the definition of sanitizing and so on.

Why Data Validation is Useful

As a gigantic amount of valuable information and data is stored on online storage clouds, a lot of hackers and frauds want to achieve access to such files. Of course, every of such clouds provides a security system that prevents a lot of external threats. Nevertheless, in most cases, bad outcomes are caused because of users themselves. In this way, validation and sanitizing can improve such a situation. As an example, we’ve chosen such opportunities in PHP as it’s one of the most common scripting languages using in web development. 

Validation in PHP is a complex of different libraries and other components aimed to define some invalid or outdated data as well as reasons for system crashes, incorrect usage of the database, and many other issues. Sanitizing, in turn, reduces validated issues. The combination of these two functions guarantees provides a perfect approach to solve any problems at their early stages and makes the security system much stronger.

The Reasons for Using Data Validation and Sanitizing

There are a lot of threats that can be used to steal or spoil the stored data. If any hacker knows to know any information about the data storage of some big company, it is a popular target that is regularly attacked and needs strong security. The ability to validate and sanitize deals with them excellently. However, it’s important to get familiar with such dangers to define and deal with them much quicker if there would be any complexities and they wouldn’t be corrected automatically.

Among the most common problems that require validation and sanitizing of the data are:

  • XSS or cross-site scripting. It allows implementing a script from one cite to another. If such a script will be used for data storage, it will be an ideal way for a third party to get into the site and steal something.
  • SQL implementation. The algorithm is pretty similar as it injects the script which allows interaction with the data of a site as well as to change it or spoil some functions.
  • CSRF/XSRF or cross-site request forgery. This way uses cookies to get access to some functions available for a user of the site. In such a way, some manipulations will be caused as if it was at the user’s will.
  • Incorrect data. Recently, the most up-to-date services handle outdated and spoiled data pretty well, but many can be crashed due to such problems. The appearance of such errors can be ignored by hackers it will be immediately used as a way to attack a site. 

All the issues mentioned above are pretty annoying and may lead to terrible consequences. However, the proper set of validation and sanitizing will provide straight error-free work. Also, PHP offers a large number of filters that can be helpful and positively impact the security system of a site as well.