REGEX-Escape for: mdb <a href="https://onlinecasinostix.us/#">free online casino</a>

Your Input:
Result, the escaped string:

What must the escaping look like for:
mdb <a href="https://onlinecasinostix.us/#">free online casino</a>

The excaped text for use in a regex is:
mdb \<a href\="https\:\/\/onlinecasinostix\.us\/#"\>free online casino\<\/a\>