REGEX-Escape for:
63%70%61%73%62%69%65%6e%64%75%72%70%61%73%73%77%6f%72%64

Your Input:

Result, the escaped string:

63%70%61%73%62%69%65%6e%64%75%72%70%61%73%73%77%6f%72%64

Ads

What must the escaping look like for:
63%70%61%73%62%69%65%6e%64%75%72%70%61%73%73%77%6f%72%64

The escaped text for use in a regex is:

63%70%61%73%62%69%65%6e%64%75%72%70%61%73%73%77%6f%72%64