Regular Expressions 101

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Community Patterns

Search among 18,000 community submitted regex patterns...

11

youtube url match

ECMAScript (JavaScript)

extract video id, index, play list id from youtube url

Submitted by anonymous - 9 years ago

8

IP Address (with 0s)

ECMAScript (JavaScript)

Matches all valid IP addresses from 0.0.0.0 to 255.255.255.255

Submitted by Ryan Plummer - 9 years ago

9

Fiddler raw body to PHP array

PCRE (PHP <7.3)

no description available

Submitted by garsax - 9 years ago

14

RFC3339 DateTime

PCRE (PHP <7.3)

Validates a RFC3339 DateTime format. Does not validates the Data

Submitted by anonymous - 9 years ago

10

Conventional Commits validation

This regex prevents the writing of non-standard conventional commits. I'm available on my github

Submitted by Krisque - 3 years ago (Last modified 3 years ago)

18

Get path from any text

PCRE2 (PHP >=7.3)

Get path (windows style) from any type of text (error message, e-mail corps ...), quoted or not. THIS IS THE SINGLE LINE VERSION !_ If you want understand how it work or edit it, go https://regex101.com/r/7o2fyy Relative path are not supported...

Submitted by nitrateag - 2 years ago (Last modified a year ago)

27

Parsing browser User Agents

PCRE (PHP <7.3)

From a (fairly large) list of User Agent strings, extract the OS, Browser, and Device Type.

Submitted by OnlineCop - 10 years ago (Last modified a year ago)

11

CSS Color Matcher

ECMAScript (JavaScript)

Pattern matching and extracting color code formats using RegEx. https://github.com/Kyza/color-regex/

Submitted by Kyza - a year ago

32

Strict Password Validator

ECMAScript (JavaScript)

This regex matches only when all the following are true: password must contain 1 number (0-9) password must contain 1 uppercase letters password must contain 1 lowercase letters password must contain 1 non-alpha numeric number...

Submitted by qho - 7 years ago (Last modified a year ago)

29

Cron schedule

PCRE (PHP <7.3)

Validate cron lines (even the ones commented out)

Submitted by anonymous - 8 years ago

18

best youtube id match ( iframe embed replace ready )

PCRE (PHP <7.3)

MATCH ANY YOUTUBE ID author : mi-ca v1.0 – 2017.03.08 This Regex match any youtube url and grab the ID. Embed ready √ --...

Submitted by mi-ca.ch - 6 years ago

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Community Library Entry

1

Regular Expression
PCRE (PHP <7.3)

/

^([^()[\]{}<>]*)(\(((?1)(?2)*)*\)|\[(?3)*\]|<(?3)*>|{(?3)*})(?1)$

/

Open regex in editor

Description

Check the correct order of the brackets (),<>,{},[] fix slashes

Submitted by Korniychuk Anton<ancor.dev@gmail.com> - 8 years ago