global modifier

Matches ISO 8601 date formats

By Using this string you can just remove ascii special characters from a unicode string characters like ♥♥♥♥ ▓▒ and other non unicode letters.

1-15 alphanumeric login name

A quite neat regular expression for URLs, e-mails..., I found on Matthew O'Riordan's blog.

Check for true or false street address format

A simple RegEx rule which should validate redirect_uri for oAuth2

extract video id, index, play list id from youtube URL

CheckEmail Login start or end simbols [._- ] .login@domain.com - fail -login@domain.com - fail _login@domain.com - fail login.@domain.com - fail...

For scraping http://skepticsannotatedbible.com/

Valid PHP variable name as defined in the manual at http://php.net/manual/en/language.variables.basics.php

Matches case insensitive first name, optional unlimited number of middle names and last name separated with space format. Replaced \w with explicit char range for Turkish support. (Äž accepted as first char not to over complex)

Find " and ' quoted strings and "orphaned"/single words in a string