How to avoid <sign in php regex

Question

Do I have to add characters before or after the character <(which is in the string, I'm trying to extract something from it - this is an html page) when doing a preliminary match?

Answer 1

you don’t need to run <unless you save the data created by the user, and then you need to be concerned about security and XSS.

Answer 2

you do not need to avoid it, it is not a special character in regular expressions.

Answer 3

"<" " > " (GNU Basic Extended regular expressions). . , .