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

0

Regular Expression
PCRE (PHP <7.3)

/
^(?=\w{6,10}$)(?=[^a-z]*[a-z])(?=(?:[^A-Z]*[A-Z]){3})(?=\D*\d)\D*\d*
/
g
Open regex in editor

Description

  1. The password must have between six and ten word characters \w
  2. It must include at least one lowercase character [a-z]
  3. It must include at least three uppercase characters [A-Z]
  4. It must include at least one digit \d
Submitted by anonymous - 7 years ago