Regular Expressions 101

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Community Patterns

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

Form Tag

Python
Form Tag
Submitted by Jay Patel - 8 years ago
5

psswd

Python
no description available
Submitted by anonymous - 8 years ago
5

Find and extract email domain

Python
Find and extract email domain. Ex: test@example.pt -> extract 'example.pt'
Submitted by Fnxk - 8 years ago
5

Match Only Text

Python
no description available
Submitted by anonymous - 7 years ago
5

get specific value from html tag

PCRE (PHP <7.3)
no description available
Submitted by A.ROA - 7 years ago
7

extract subdomain(if available) or domain from URL

Python
This regex should extract the subdomain, if any, or the domain, if no subdomain is used, from an arbitrary URL
Submitted by trevi@twanda.com - 8 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
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

Recommended
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

English date in "dd mmmm yyyy" format

Python
Parse an English date following the "dd mmmm yyyy" format.
Submitted by Tantale - 9 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
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
12345...687

semver

4

Regular Expression
Recommended
PCRE (PHP <7.3)

/
^(?'MAJOR'0|(?:[1-9]\d*))\.(?'MINOR'0|(?:[1-9]\d*))\.(?'PATCH'0|(?:[1-9]\d*))(?:-(?'prerelease'(?:0|(?:[1-9A-Za-z-][0-9A-Za-z-]*))(?:\.(?:0|(?:[1-9A-Za-z-][0-9A-Za-z-]*)))*))?(?:\+(?'build'(?:0|(?:[1-9A-Za-z-][0-9A-Za-z-]*))(?:\.(?:0|(?:[1-9A-Za-z-][0-9A-Za-z-]*)))*))?$
/
gm
Open regex in editor

Description

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