Regular Expressions 101

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Community Patterns

13

PHP variable name

PCRE (PHP <7.3)
Valid PHP variable name as defined in the manual at http://php.net/manual/en/language.variables.basics.php
Submitted by Erin Millard - 12 years ago
52

Disorted Email Addresses

PCRE (PHP <7.3)
Matches distorted email addresses and converts them back to real ones.
Submitted by dislick - 12 years ago
40

URL regexp

PCRE (PHP <7.3)
A quite neat regular expression for URLs, e-mails..., I found on Matthew O'Riordan's blog.
Submitted by Matthew O'Riordan - 12 years ago
1...900901902

Community Library Entry

1

Regular Expression
PCRE2 (PHP >=7.3)

/
^((?!\.)[\w\d](?!.*\.\.)[a-zA-Z0-9\.!#$%&'*+\-\/=?^_`{|}~]*[^\.\s])@([a-zA-Z][a-zA-Z\d-]+[a-zA-Z\d]+\.)+[a-zA-Z]{2,6}$
/
gm
Open regex in editor

Description

Verify that a given e-mail address is valid.

We all know how complex emails are, but despite this, let's give it a try and see what we can come up with.

You could start by trying to match contact@regex101.com (denoted as <local-part>@<domain>.<top-level-domain>).

Submitted by anonymous - 2 months ago