Regular Expressions 101

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Community Patterns

Search among 12,780 community submitted regex patterns...

13

Credit Card Expiry Date

ECMAScript (JavaScript)

Allows inserting expiry date as MM/YYYY or MM-YYYY format

Submitted by Rider - 8 years ago

12

US Currency Format

ECMAScript (JavaScript)

no description available

Submitted by anonymous - 8 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

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 - 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

5

CSS Color Matcher

ECMAScript (JavaScript)

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

Submitted by Kyza - 2 months ago

7

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

PCRE (PHP <7.3)

no description available

Submitted by anonymous - 8 years ago

7

simple email

ECMAScript (JavaScript)

no description available

Submitted by anonymous - 8 years ago

7

Extract currency with currency symbol if present

ECMAScript (JavaScript)

Extracts values of the form £nnn,nnn.nn or $nnn.nnn from text

Submitted by Simon Gardner - 8 years ago

7

Remove Widows (PHP)

PCRE (PHP <7.3)

Adds a non-breaking space between the last two words of sentences

Submitted by herkulano - 8 years ago

72

Regex for telephone numbers all over the world

ECMAScript (JavaScript)

Detects most of the phone numbers all over the world

Submitted by Aditya Joshi - 9 years ago

36

IP Address validator

ECMAScript (JavaScript)

Validates IPv4 IP Address

Submitted by krzysp - 8 years ago

4

semver

PCRE (PHP <7.3)

Semantic Versioning regex pattern according to Tom Preston-Werner http://semver.org/ https://github.com/mojombo/semver/blob/master/semver.md First version of this regex follows semver 2.0.0....

Submitted by @gvlx <Gerardo Lisboa> - 9 years ago

18

Date Regex(DD/MM/yyyy)

PCRE (PHP <7.3)

no description available

Submitted by alcaamado - 8 years ago

15

Hashtag

ECMAScript (JavaScript)

The secret of the Twitterverse.

Submitted by Joogl - 9 years ago

11

Codice fiscale

PCRE (PHP <7.3)

Check "codice fiscale"

Submitted by Luca - 8 years ago

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