Regular Expressions 101

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Community Patterns

238

Matching email addresses per RFC5322

PCRE (PHP <7.3)
The BNF rules from RFC 5322 transformed to PCRE by Nikita Popov and described in the post http://nikic.github.io/2012/06/15/The-true-power-of-regular-expressions.html.
Submitted by Michael Musson - 11 years ago
483

regex101.com permalink id grabber

PCRE (PHP <7.3)
Grabs the ID for the regex101.com permalink code. If a revision number is provided, grab that as well.
Submitted by chris mccoy - 11 years ago (Last modified 8 months ago)
1...900901902

Community Library Entry

2

Regular Expression
PCRE (PHP <7.3)

/
^(?<User>[_a-z0-9-]+(\.[_a-z0-9-]+(?<GmailTag>\+[_a-z0-9-]+){1,1})*)@(?<Host>[a-z0-9-]+(\.[a-z0-9-]+)*\.[a-z]{2,4})$
/
i
Open regex in editor

Description

Get Gmail tag, user and domain of an email address

Submitted by Matías Pizarro González - 9 years ago