I’ve talked about data sanitization in WordPress in previous posts. This is a topic that’s important not only for those of us working to build solutions for others in WordPress, but also for those who are writing code that will directly interact with a database via PHP.
Sure, there are native WordPress functions to make this process easier, but there are also built-in PHP filtering functions to help with this. Namely filter_var and filter_input and these are things that I think are helpful for PHP developers to know.


