Regular Expressions 101

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Community Patterns

1

CSS Selectors

PCRE2 (PHP >=7.3)
Captures CSS Selectors along with combinators
Submitted by Joseph R - 2 days ago
1

Minecraft whisper commands

PCRE2 (PHP >=7.3)
This regex lets you extract all the uses of the whisper command in Minecraft log files.
Submitted by anonymous - 2 days ago
1

Extract Grasemonkey userscript metadata

PCRE2 (PHP >=7.3)
This regex uses groups to extract metadata from Grasemonkey/Tampermonky user scripts.
Submitted by pikapower9080 - 2 days ago
1

Fonction.Code

PCRE2 (PHP >=7.3)
Fonction.Code
Submitted by Groupe 18 - 3 days ago (Last modified 3 days ago)
1

NIR Sécurité Sociale en France

PCRE2 (PHP >=7.3)
Cette regex est un fork de celle-ci permettant de valider un numéro de sécurité sociale français et prenant en compte les cas spécifiques définis sur cette page Wikipedia
Submitted by Nicolas Jourdain - 4 days ago (Last modified 4 days ago)
1

省市县 正则

PCRE2 (PHP >=7.3)
省市县
Submitted by anonymous - 4 days ago
1

match a collection of usernames after tag 'users:' and between '[...]' and separated by commas

ECMAScript (JavaScript)
self explainatory title, usernames array must not contain any exotic character besides ,
Submitted by Lagoffre - 4 days ago
1

match a username after 'user:'

ECMAScript (JavaScript)
self explainatory title, username must not contain any exotic character.
Submitted by Lagoffre - 4 days ago
1

change markdown image embeds to html image embeds

PCRE2 (PHP >=7.3)
change markdown image embeds to html image embeds
Submitted by spierceVR - 5 days ago
1

Email validation

PCRE2 (PHP >=7.3)
This code used to validate any email.
Submitted by anonymous - 6 days ago
1

match time offset from timezone offset string

ECMAScript (JavaScript)
match offset from utc offset string returned by the timeZoneName property of an Intl.DateTimeFormat object. (see MDN documentation here)
Submitted by Lagoffre - 7 days ago (Last modified 7 days ago)
1

Domain with protocol, Username, Third-Level-Domain, Second-Level-Domain, Top-Level-Domain and Port.

PCRE2 (PHP >=7.3)
Get Complete Domain with protocol, username, Third-Level-Domain, Second-Level-Domain, Top-Level-Domain and Port For Example: Course at https://udemy.com/path/to/course Test at http://user@sample.com/path Something ftp://domain.com:80/any...
Submitted by amnd33p - 8 days ago (Last modified 8 days ago)
2

Exponential Value Identification

PCRE2 (PHP >=7.3)
Exponential Value Identification
Submitted by Nimit Bhagat - 10 days ago
1

Email id filter

PCRE2 (PHP >=7.3)
This is a filter for E-mail id
Submitted by anonymous - 11 days ago
1

(Good enough) Birth Date match

PCRE2 (PHP >=7.3)
Follows ISO 8601 standard (YYYY-MM-DD) $1 is year, $2 is month and $3 is day (for substitution)
Submitted by Danry Bir - 11 days ago
1

Birth date check format yyyy-mm-dd

ECMAScript (JavaScript)
Start from 1900-01-01
Submitted by anonymous - 12 days ago
1

C-style compiler directive

PCRE2 (PHP >=7.3)
#(\w+)\s(\w+)\s(\S+) This allows you to capture C-style compiler directives
Submitted by ThatSoulyGuy - 12 days ago
1

Best birth date check

ECMAScript (JavaScript)
Format YYYY-MM-JJ
Submitted by anonymous - 13 days ago
1

https://regex101.com/r/8TUykT/1

PCRE2 (PHP >=7.3)
/(?: ?\G|^cats are )((?:silly|cute)(?: |$))/
Submitted by anonymous - 13 days ago
1

WT Forum

PCRE2 (PHP >=7.3)
WTFORUMS
Submitted by wttmforums.com - 16 days ago
123...783

Datetime any format

1

Regular Expression
PCRE2 (PHP >=7.3)

/
^(?#day)(?>(?<day>[0-9]+)(?:(d$)|(d(?=[0-9]))|(:(?=[0-9]+(:|h)[0-9]+(:|m)[0-9]+))))?(?#dayEnd )(?#hour)(?>(?<hour>[0-9]+)(?:(h$)|(h(?=[0-9]))|(:(?=[0-9]+(:|m)[0-9]+))))?(?#hourEnd )(?#min)(?>(?<min>[0-9]+)(?:(m$)|(m(?=[0-9]))|(:(?=[0-9]))))?(?#minEnd )(?#sec)(?>(?<sec>[0-9]+((\.|\,)[0-9]*)?)(?:s|$))?(?#secEnd )(?#msec)(?>(?<msec>[0-9]+)(?:(ms$|$)))?(?#msec)$
/
mg
Open regex in editor

Description

Datetime any format

Submitted by RVH - 24 days ago (Last modified 24 days ago)