How to prevent XSS using HTML/PHP?

Question

How to prevent XSS (cross-site scripting) using only HTML and PHP?

I've seen many other posts on this topic, but I haven't found one that clearly and concisely explains how to actually prevent XSS.

Answer 1

Basically you need to use the function htmlspecialchars()< /code> whenever you want to output something to the browser in an HTML context.

The correct way to use this function is as follows:

echo htmlspecialchars($string, ENT_QUOTES, 'UTF-8');

Google Code University also offers these educational videos on cybersecurity:

• How to crack web software - View Network software

• Safety knowledge every engineer needs to know And where to study