Regular Expressions 101

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Community Patterns

Search among 11,760 community submitted regex patterns...

20

Cron schedule

PCRE (PHP <7.3)

Validate cron lines (even the ones commented out)

Submitted by anonymous - 8 years ago

15

RFC3339 DateTime

PCRE (PHP <7.3)

Validates a RFC3339 DateTime format. Does not validates the Data

Submitted by anonymous - 8 years ago

24

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 - 9 years ago (Last modified 5 months ago)

7

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 - 5 years ago

12

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 - 10 months ago (Last modified 4 months ago)

9

Conventional Commits validation

PCRE (PHP <7.3)

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

Submitted by Krisque - 2 years ago (Last modified 4 months ago)

9

Fiddler raw body to PHP array

PCRE (PHP <7.3)

no description available

Submitted by garsax - 8 years ago

11

remove comments from php code

PCRE (PHP <7.3)

no description available

Submitted by anonymous - 9 years ago

9

Fixo LDN CSP e SEM CSP

PCRE (PHP <7.3)

no description available

Submitted by Marcos MÃ¼ller - 9 years ago

483

regex101.com id grabber

PCRE (PHP <7.3)

grabs the ID for the regex101.com permalink to code

Submitted by chris mccoy - 10 years ago (Last modified 4 months ago)

13

Match Gmail Email

PCRE (PHP <7.3)

Match Gmail Email

Submitted by Ã“scar EnrÃquez - 9 years ago

236

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 - 10 years ago

10

MikroTik FireWall

PCRE (PHP <7.3)

Regex used in Splunk to extract fields from Mikrotik FW. NOTES: Mikrotik must be configured to use "BSD Syslog" format FW rules must add, as log prefix, the action: drop accep...

Submitted by HappyIdeasMaker - 9 years ago

5

Find All Python imports

PCRE (PHP <7.3)

no description available

Submitted by anonymous - 9 years ago

5

relative to absolute

PCRE (PHP <7.3)

relative to absolute

Submitted by xp_prg - 9 years ago

5

Quartz Cron Validation

PCRE (PHP <7.3)

http://stackoverflow.com/questions/2362985/verifying-a-cron-expression-is-valid-in-java

Submitted by anonymous - 8 years ago

5

Codice fiscale italiano

PCRE (PHP <7.3)

Oltre a supportare le omocodie controlla in modo restrittivo il carattere relativo al mese di nascita

Submitted by Aldo Medri - 8 years ago

5

look for any $_POST['name']

PCRE (PHP <7.3)

if you are as lazy as me and want to replace every "=$_POST['name'];" using Dreamweaver or any development tool that allows using regular expressions to search in current file/document.

Submitted by Kevinator - 8 years ago

5

get specific value from html tag

PCRE (PHP <7.3)

no description available

Submitted by A.ROA - 7 years ago

7

validate US (5 & 9 digit) ZipCodes and CA PostalCodes

PCRE (PHP <7.3)

no description available

Submitted by anonymous - 9 years ago

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