filter_var or htmlentities() or htmlspecialchars() - PHP Coding Help - PHP Freaks
7 Useful PHP Libraries You Should Use in Your Next Project | by Farhan Tanvir | CodeX | Medium
Sonar Research on Twitter: "Be careful when using filter_var() for validating user input. Can you spot the vulnerability? #PHP #coding #codechallenge https://t.co/NM8r7DLl0k" / Twitter
PHP Filters are used to sanitize data coming from outside world inside your application.
filter_var/filter_var.php at master · javazac/filter_var · GitHub
How to Validate (and Sanitize) User Input In PHP Using Filter_Input() and Filter_Var() | by John Morris | Medium
How To Validate URL in PHP with Regex - CodeSolutionStuff
Filter Functions in PHP
PHP filter_var | How does the filter_var function work in Php?
Validating User Input With the filter_var() Function
Email Validation in PHP Free Source code and Tutorial - iNetTutor.com
PHP, verify email address and IP address using filter_var - YouTube