Regular Expressions 101

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Community Patterns

Search among 9,320 community submitted regex patterns...

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

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

11

Codice fiscale

PCRE (PHP <7.3)

Check "codice fiscale"

Submitted by Luca - 8 years ago

9

Letters, numbers and blank space

PCRE (PHP <7.3)

The following regular expression matches only letter a-z A-Z numbers 0-9 and a blank space for a given string.

Submitted by Jordan Raychev - 8 years ago

17

Capture comma separated numbers

PCRE (PHP <7.3)

Capture comma separated numbers, no matter if there are spaces before or after the commas.

Submitted by Fernando Nunes - 8 years ago

16

IPv4

PCRE (PHP <7.3)

no description available

Submitted by robwa - 8 years ago

31

ninite

PCRE (PHP <7.3)

no description available

Submitted by peek - 8 years ago

29

Wrap long string to spec length

PCRE (PHP <7.3)

no description available

Submitted by fullpipe - 10 years ago

10

Just validate one sequence of

PCRE (PHP <7.3)

sdfs sdfs FLBREV00022230 dsfsdfs sdfsf FLBREV00022234 In this case is false

Submitted by Fiipe - 9 years ago

17

Between tags content

PCRE (PHP <7.3)

no description available

Submitted by Agustín Bouillet - 8 years ago

6

[A-Za-z\x{0600}-\x{06FF}\x{1000}-\x{1021}_-][-\w]*

PCRE (PHP <7.3)

A-Za-z\x{0600}-\x{06FF}\x{1000}-\x{1021}_-*

Submitted by [A-Za-z\x{0600}-\x{06FF}\x{1000}-\x{1021}_-][-\w]* - 9 years ago

8

Extract url GET parameters

PCRE (PHP <7.3)

Returns key/value pair of a url. Also works with google fonts which has additional information

Submitted by anonymous - 9 years ago

8

If-Then-Else Conditionals

PCRE (PHP <7.3)

no description available

Submitted by anonymous - 8 years ago

28

CSV line parsing

PCRE (PHP <7.3)

Captures all fields from a CSV file's line. Can be customized with user-defined field separator and protecting character.

Submitted by Various - 9 years ago

51

Disorted Email Addresses

PCRE (PHP <7.3)

Matches distorted email addresses and converts them back to real ones.

Submitted by dislick - 11 years ago

7

Sentence grabber /w extra check

PCRE (PHP <7.3)

Grabs sentences including terms like: e.g. z.b. Figs.These get caught in 1st capturing group. Problem: how to only accept matching sentences which contain pattern \b\d+[a-z]{0,2}\b?

Submitted by light0 - 9 years ago

7

Max - URL Extract

PCRE (PHP <7.3)

no description available

Submitted by Ayush - 7 years ago

18

Date: DD-MM-YYYY hh:mm:ss

PCRE (PHP <7.3)

Validate and capture dateTime parts, includes validation for leap years, range 1000-2999. Fixed bug

Submitted by Ka. - 10 years ago

22

UK Postcode Checker

PCRE (PHP <7.3)

Checks for valid UK/British postcodes. There was another on here that had for some reason been upvoted, but it was actually incorrect as it worked on none of my valid own postcodes! Namely that it assumed two letters and a number (BS3) when you can have variations (M20). Allows for an optional spac...

Submitted by MaffooBristol - 9 years ago

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