Regular Expressions 101

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Community Patterns

3

ISO 8601 date

PCRE (PHP <7.3)
Validates a date with ISO 8601 format. Source: http://www.pelagodesign.com/blog/2009/05/20/iso-8601-date-validation-that-doesnt-suck/
Submitted by anonymous - 10 years ago
5

parsing CSV file

PCRE (PHP <7.3)
It correctly handles simple values, empty values, and quoted values with commas inside.
Submitted by Viktor Lova aka nsinreal - 10 years ago
3

Twitch URL Regex

Python
Can grab all kinds of valid twitch URLs.
Submitted by Mio - 10 years ago
1

4-digit numeric w/o leading zero and no repeat digits

PCRE (PHP <7.3)
no description available
Submitted by anonymous - 10 years ago
-1

UK Postcode Validation

ECMAScript (JavaScript)
Matches all valid, current UK Postcodes, including Girobank and non-geographic postcodes, irrespective of whether they contain a space. It does not include overseas territories. Adapted from the BS7666 postcode rules at http://www.cabinetoffice.gov.uk/govtalk/schemasstandards/e-gif/datastandards/add...
Submitted by Ti Marner - 10 years ago
6

Replace caracters not inside HTM tags

ECMAScript (JavaScript)
Select a character (or string) ingnoring if that element is inside the HTML tags. Useful to apply html tags using replace.
Submitted by Alex5B - 10 years ago
1

french phone number (intl format)

PCRE (PHP <7.3)
little matcher for french phone number in international format (example: +33231348228)
Submitted by Nolwennig - 10 years ago
3

white space before punctuations, outside script and code tags

PCRE (PHP <7.3)
white space before punctuations, outside script and code tags
Submitted by ced - 10 years ago
1

IP v4 format validation

PCRE (PHP <7.3)
Valid 0.0.0.0 1.1.1.1 101.101.101.101 255.255.255.255 156.0.1.10...
Submitted by NexRezzo - 10 years ago
1

Indian Phone Numbers!

PCRE (PHP <7.3)
This is not supported in Javascript! Works well for php, python. Examples: +91-8800119719, 08800119719, 8800119719, +918800119719 etc.
Submitted by Prateek Jain - 9 years ago
6

IOS3166 Country Code Identification REGEX

Python
IOS3166 Country Code Identification REGEX
Submitted by theitgeek@recu.org.uk - 9 years ago
4

IPV4 address validation using recursion

PCRE (PHP <7.3)
Validate IPv4 addresses using PCRE's recursion patterns. A shorter but less efficient alternative to https://regex101.com/r/wZ6oY5/1
Submitted by Captain Haddock - 9 years ago
3

email

ECMAScript (JavaScript)
no description available
Submitted by anonymous - 9 years ago
5

Latitude,Longitude fetcher

PCRE (PHP <7.3)
Useful to work with GoogleMap API.
Submitted by anonymous - 9 years ago
2

postgesql

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

Password strength

ECMAScript (JavaScript)
Regular expression for password validation Rules: 8-120 chars no spaces must contain at least one a-z char must contain at least one A-Z char...
Submitted by @razvanz - 9 years ago
3

Perl

PCRE (PHP <7.3)
no description available
Submitted by anonymous - 9 years ago
1

dd/mm/yyyy validation regexp

Python
no description available
Submitted by uknnown - 9 years ago
0

get params from json

ECMAScript (JavaScript)
no description available
Submitted by anonymous - 9 years ago
4

Mobile phone russia

ECMAScript (JavaScript)
Submitted by Johhny - 9 years ago
1...910111213...901

Community Library Entry

0

Regular Expression
PCRE (PHP <7.3)

/
^(@)?(https?:)?(\/\/)?(www\.)?(([a-z0-9\p{L}][a-z0-9\p{L}-\.]{1,61})([a-z0-9\p{L}]\.[a-z0-9\p{L}][a-z\p{L}-])*([a-z0-9\p{L}])+\/)?(#!\/)?([a-z0-9][a-z0-9.]{1,61})([\/|\?].*)*$
/
gmi
Open regex in editor

Description

unicode, IDN, usual domains

Submitted by anonymous - 8 years ago