Regular Expressions 101

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Community Patterns

11

Address Check Validation

PCRE (PHP <7.3)
Check for true or false street address format
Submitted by Dilip Borad - 11 years ago
11

Date(Including Leap Year) YYYY-MM-DD hh:mm:ss

PCRE (PHP <7.3)
Validates DateTime of format YYYY-MM-DD hh:mm:ss including Leap Year
Submitted by Madhan - 11 years ago
11

UUID

ECMAScript (JavaScript)
no description available
Submitted by anonymous - 10 years ago
11

html color match: transparent, #fff, #123456, rgb, rgba, hsl, hsla

ECMAScript (JavaScript)
This may be useful or not to test whether a given string is a valid (more or less) html color value. It matches color values such as: #123 - short hex color value #123456 - hex color value rgb(255,255,0) - rgb color value rgba(255,255,0,1.0) - rgba color value hsl(360,100%,100%) - hsl color value...
Submitted by grouch - 10 years ago
11

remove comments from php code

PCRE (PHP <7.3)
no description available
Submitted by anonymous - 10 years ago
11

find all link(<a>) tags expect your links in href attribute

ECMAScript (JavaScript)
YourLink - not found AnotherLink - found
Submitted by KoT - 9 years ago
11

youtube url match

ECMAScript (JavaScript)
extract video id, index, play list id from youtube url
Submitted by anonymous - 9 years ago
11

Codice fiscale

PCRE (PHP <7.3)
Check "codice fiscale"
Submitted by Luca - 9 years ago
11

IPv4 Validator

PCRE (PHP <7.3)
no description available
Submitted by anonymous - 4 years ago (Last modified a year ago)
11

Conventional Commits validation

Python
This regex prevents the writing of non-standard conventional commits. I'm available on my github
Submitted by Krisque - 3 years ago (Last modified 3 years ago)
12

Full name (Turkish)

ECMAScript (JavaScript)
Matches case insensitive first name, optional unlimited number of middle names and last name separated with space format. Replaced \w with explicit char range for Turkish support. (Äž accepted as first char not to over complex)
Submitted by CKK - 10 years ago
12

Find Reddit Threads

Python
Simply searches for the thread-id in any kind of valid reddit-URL.
Submitted by Mio - 10 years ago
12

Remove Special Ascii Characters from unicode String

PCRE (PHP <7.3)
By Using this string you can just remove ascii special characters from a unicode string characters like ♥♥♥♥ ▓▒ and other non unicode letters.
Submitted by Hummad Hassan - 10 years ago
12

Full url parse, domain, path, params

ECMAScript (JavaScript)
no description available
Submitted by anonymous - 9 years ago
12

Username with "_" "-"

ECMAScript (JavaScript)
no description available
Submitted by Gianvy - 9 years ago
13

PHP variable name

PCRE (PHP <7.3)
Valid PHP variable name as defined in the manual at http://php.net/manual/en/language.variables.basics.php
Submitted by Erin Millard - 12 years ago
13

regex101.com id grabber

PCRE (PHP <7.3)
grabs the ID for the regex101.com permalink to code
Submitted by chris mccoy - 10 years ago
13

URL Validator

PCRE (PHP <7.3)
Validates - URLs with schemes - http, https and ftp Relative URL starting with / and ../
Submitted by anonymous - 10 years ago
13

Match Gmail Email

Recommended
PCRE (PHP <7.3)
Match Gmail Email
Submitted by Óscar Enríquez - 10 years ago
13

Credit Card Expiry Date

ECMAScript (JavaScript)
Allows inserting expiry date as MM/YYYY or MM-YYYY format
Submitted by Rider - 10 years ago
1...897898899900901902

Community Library Entry

1

Regular Expression
ECMAScript (JavaScript)

/
^(([^<>()\[\]\\.,;:\s@"]+(\.[^<>()\[\]\\.,;:\s@"]+)*)|(".+"))@((\[[0-9]{1,3}\.[0-9]{1,3}\.[0-9]{1,3}\.[0-9]{1,3}])|(([a-zA-Z\-0-9]+\.)+[a-zA-Z]{2,}))$
/
Open regex in editor

Description

Original credit for this expression goes to:

https://emailregex.com/

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