Why is PHP Taint needed?

Question

css

Hello

https://www.php.net/manual/en/function.taint.php

Answer 1

there is no picture, it is not displayed

Answer 2

This is a function to mimic a string with a vulnerability so as not to manually reproduce this vulnerability in its natural form. It seems to me that this article from Psalm describes well the meaning of this vulnerability and how to fix it (and hence the meaning of the existence of the function)
https://psalm.dev/articles/detect-security-vulnera...