REGEX-Escape for: http://onlinesslviaqra.com/ - viagra online pharmacy viagra for men <a href=...

Your Input:
Result, the escaped string:
http\:\/\/onlinesslviaqra\.com\/ \- viagra online pharmacy viagra for men \online pharmacy viagra\<\/a\>

What must the escaping look like for:
http://onlinesslviaqra.com/ - viagra online pharmacy viagra for men <a href="http://onlinesslviaqra.com/">online pharmacy viagra</a>

The excaped text for use in a regex is:
http\:\/\/onlinesslviaqra\.com\/ \- viagra online pharmacy viagra for men \<a href\="http\:\/\/onlinesslviaqra\.com\/"\>online pharmacy viagra\<\/a\>