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How to Validate (and Sanitize) User Input In PHP Using Filter_Input() and Filter_Var() | by John Morris | Medium
filter_var FILTER_VALIDATE_IP with ip '0.2.3.4' will return true · Issue #11098 · php/php-src · GitHub
PHP 7.3, "filter_var(): explicit use of FILTER_FLAG_SCHEME_REQUIRED and FILTER_FLAG_HOST_REQUIRED is deprecated" · Issue #1572 · PHPMailer/PHPMailer · GitHub
![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 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](https://pbs.twimg.com/media/Dy4OsxIXQAEBu8T.jpg)