Matches any valid JSON object, matches recursively. Passes all JSON test cases I found.

Use this regex to select all characters up to the "" bracket. It works across multiple lines. You can get an email list with only the IDs. This is the pattern it matches: Alpha Person Step 1 (.*) $ Step 2 [$.$ gives you aperson@whatever.org

Email address, most used cases

global modifier

Matches ISO 8601 date formats

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 login-@domain.com - fail login_@domain.com - fail Login double simbol [._-] login..name@domain.com - fail login--name@domain.com - fail login__name@domain.com - fail login_-name@domain.com - fail login_.name@domain.com - fail Domain start or end simbol [.-] login@-domain.com - fail login@.domain.com - fail login@domain.com. - fail Domain not march simbol [_] login@dom_ain.com - fail Domain double simbol [.-] login@domain..com - fail login@domain--domain2.com - fail Big subdomain login@dom1.dom2.dom-3.dom-4.com - good Domain end two or more simbol login@domain.c - fail login@domain.ru - good Login or domain can contain numbers 123login456@123domain456.com - good var reg = /^([a-z0-9]+(?:[._-+))@(a-z0-9]+(?:[.-+)\.[a-z]{2,})$/i var result = reg.exec("login@domain.com"); //['login@domain.com', 'login', 'domain.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)