Regular Expressions 101

Port https://regex101.com/library/cX0pJ8 to PCRE2 (PHP >= 7.3)

Detects any Grabify IP tracker links

Matches protocol, domain, port, path, query and anchor as named capturing groups.

I had to check for myself, but I thought, suddenly someone also come to someone later =)

Matches a password that has been passed in as a url query parameter or in a post dictionary.

skip if the url is a permalink

extracts hostname from url

to put # instead of url

This came up as a need for splitting a url param into an array ofr stings, where such a string may be a sublist contained within a bracket pair

Matches subdomain, domain and top level in a field that contains a urls. https://www.whatever.you.want ---> whatever.you.want

https://www.google.com http://www.google.net/hello https://www.google. http://www.google./hello above url matching with given regex...

Parses a URL to the different parts

Parse an SFTP or FTP url and brak it into named capture groups.

Find any url('~filename.jpg'). URL must contain tilde

Gets the parameters (how many you want) from a url and organize into groups

Matches a 4chan thread URL, see the examples

Adopted one of answers from: http://stackoverflow.com/questions/5948051/regex-extract-twitterusername-from-url