Regular Expressions 101

Gets all parts of URL including port, username, password, fragment, query, and path

This will remove all facebook urls from a HTML string

simple url regex which also prevents capture of a trailing ">" (the html representation of ">")

a simple url regex which prevents matching of a trailing ">" (the html representation of a closeing angle bracket ">")

Verifies YouTube video links AND pulls the video ID from them in a matching group. Works with all capitalizations. It also matches the WHOLE link but sorts the video ID into a group. Works with JavaScript, PHP and Python. (Not tested with any other Regex engine) ...

preg_math_all only. ex.: http://doman.com, http://doman.com/, http://doman.com/?query=1,http://doman.com?query=1, domain.com, doman.com?query=1 and other

This matches a ASP Cookieless SessionId. Useful if, for example, after deprecating Cookieless sessions you want to redirect any clients with a cached sessionId to the plain url.

Grabs the ID and revision from the URL.

http://blog.jmsinfo.co/?d=2015/02/16/10/17/49

extract the path from a URL returns one group (if matching) with the path info e.g. http://somedomain.com/some-page/ http://www.domain.com:8080/some-page/ https://www.google.com:8080/some-page/...

gets the ://:/ from am url

Validates a URL input as text and then slices it into: protocol, base_url, port, relative_url and parameters. (Multiline and global flags are set for debugging reasons only)

This will validate whether you starts with http(s)://

Someone on IRC posted the following site: https://mathiasbynens.be/demo/url-regex which challgenged me to write a decent regex to match valid URLs in that list. This regex works in both pcre and javascript (you'll have to replace the pcre-specific syntax to make it work in JS). Don't actually use t...

You can match the string starts with // (forward slash)