How to change the regular expression?

Question

PHP

There is a regular expression. It will remove tags and their attributes. How to correct it correctly so that it does not delete, let's say the title = "Test" tag has it?
'#</?'.$tag.'[^>]*>'

Answer 1

You have a problem. You decide to use regular expressions to solve it.
Now you have two problems.

- Doctor, when I do this, it hurts...
- Don't do this.

Seriously, regular expressions are not for that. It would be correct not to correct this expression, but to throw it out entirely.