filter_var(): Unknown filter with ID 1172747872 · Issue #9461 · php/php-src · GitHub
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PHP Filters - filter_var(), filter_list() | jobtensor
实例讲解PHP验证邮箱是否合格- 经验笔记
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You Should Be Using PHP Filtering Functions, Part 1 | Tom McFarlin
PHP — P103: filter_var Built-in Function | by Dino Cajic | Nov, 2022 | Medium
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PHP filter_var() Function - YouTube
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PHP filter_var - YouTube
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.
PHP Security Function: strip_tags, filter_var, Md5 and sha1
