![codeigniter - How to add a parameter to the URL according to the filter option that the user chooses in PHP - Stack Overflow codeigniter - How to add a parameter to the URL according to the filter option that the user chooses in PHP - Stack Overflow](https://i.stack.imgur.com/WwzAa.png)
codeigniter - How to add a parameter to the URL according to the filter option that the user chooses in PHP - Stack Overflow
GitHub - traderinteractive/filter-strings-php: A filtering implementation for verifying correct data and performing typical modifications to strings.
![PHP bug allows attackers to bypass domain filters, stage DoS attacks against servers | The Daily Swig PHP bug allows attackers to bypass domain filters, stage DoS attacks against servers | The Daily Swig](https://portswigger.net/cms/images/8a/df/c803-article-220401-php-main.png)