Finds valid phone numbers, including dashes Valid: 223-444-5555 Invalid:...

Validate the structure of the IP address with suffix of red

2017-06-29\s06:50:(\d+).?([A-Z]+).?(?:\[(.*?+))

Iranian cell phone number pattern to being used in regular expression this work for iranian operator (irancell , Taliya, MCI,RighTel) Irancell and Taliya : 093 , MCI : 091 , RighTel : 092 cheers

How to detect palindromes up to 12 characters in length. I chose 12 because currently, the longest palindrome that is an actual word is "tattarrattat". This was a fun exercise because someone said pcre can't detect palindromes. Check and mate, my good sir.

Format name listing by putting last name first

Validates a URI slug. Must: Contain lowercase alphanumeric character(s) separated with a single dash. Optionally allows:...

Telegram bot deep linking Telegram bots have a deep linking mechanism, that allows for passing additional parameters to the bot on startup. It could be a command that launches the bot — or an auth token to connect the user's Telegram account to their account on some external service. ...

TAB £ symbol searching from the end