Regular Expressions 101

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Community Patterns

5

Form Tag

Python
Form Tag
Submitted by Jay Patel - 9 years ago
5

psswd

Python
no description available
Submitted by anonymous - 9 years ago
5

Match Only Text

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

get specific value from html tag

PCRE (PHP <7.3)
no description available
Submitted by A.ROA - 8 years ago
5

among us references

ECMAScript (JavaScript)
it detects among us references among us aming us mongus amogus sus...
Submitted by h - 4 years ago (Last modified 4 years ago)
5

Match any url in text or html (http, https)

PCRE2 (PHP >=7.3)
Match any url in text or html (http, https)
Submitted by Jérémy Munsch - 3 years ago
7

SO: fail2ban regular to find 403 request in nginx

Python
http://stackoverflow.com/q/25778420/2072035
Submitted by anonymous - 10 years ago (Last modified a year ago)
7

[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]* - 10 years ago
7

TimezoneOffset

ECMAScript (JavaScript)
used to parse timezone in the format -08:00 or +05:30
Submitted by Neha - 10 years ago
7

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

PCRE (PHP <7.3)
no description available
Submitted by anonymous - 10 years ago
7

IOS3166 Country Code Identification REGEX

Python
IOS3166 Country Code Identification REGEX
Submitted by theitgeek@recu.org.uk - 10 years ago
7

simple email

ECMAScript (JavaScript)
no description available
Submitted by anonymous - 10 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 - 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 - 9 years ago
72

Regex for telephone numbers all over the world

Recommended
ECMAScript (JavaScript)
Detects most of the phone numbers all over the world
Submitted by Aditya Joshi - 11 years ago (Last modified a year 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> - 10 years ago
16

Hashtag

ECMAScript (JavaScript)
The secret of the Twitterverse.
Submitted by Joogl - 10 years ago
18

Date Regex(DD/MM/yyyy)

PCRE (PHP <7.3)
no description available
Submitted by alcaamado - 9 years ago
35

IP Address validator

ECMAScript (JavaScript)
Validates IPv4 IP Address
Submitted by krzysp - 10 years ago
20

Between tags content

PCRE (PHP <7.3)
no description available
Submitted by Agustín Bouillet - 9 years ago
12345...902

Community Library Entry

1

Regular Expression
PCRE2 (PHP >=7.3)

/
(http[s]?):(\/+)
/
gm
Open regex in editor

Description

Make sure http[s]:// uses two slashes, not one.

IIS rewrite rules removes double slashes in the raw URL, breaking YOURLS (PHP) for example. This regexp changes all single slashes to double after a web protocol, including nested querystrings.

Submitted by DeveloperDog - a year ago (Last modified a year ago)