Regular Expressions 101

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Community Patterns

1

Match Credit Card Numbers (Visa, MasterCard)

PCRE2 (PHP >=7.3)
DesignMagazines.net
Submitted by anonymous - 4 months ago
1

Match HTML Tags with Attributes

PCRE2 (PHP >=7.3)
DoWiesPlace.com
Submitted by anonymous - 4 months ago
1

Match Username with Special Characters

PCRE2 (PHP >=7.3)
NetBusinessZone.com
Submitted by anonymous - 4 months ago
1

Match Specific File Extensions (e.g., .jpg, .png)

PCRE2 (PHP >=7.3)
NewIntrEnds.com
Submitted by anonymous - 4 months ago
1

Match Non-Digit Characters

PCRE2 (PHP >=7.3)
TechnicalBudd.com
Submitted by anonymous - 4 months ago
1

Match a credit card number with optional dashes or spaces

PCRE2 (PHP >=7.3)
TerraWats.com
Submitted by anonymous - 4 months ago
1

Match Valid Domain Name

PCRE2 (PHP >=7.3)
ToopFile.com
Submitted by anonymous - 4 months ago
1

Match Credit Card Number with Optional Spaces

PCRE2 (PHP >=7.3)
TreeLyrics.com
Submitted by anonymous - 4 months ago
1

XML Attribute

PCRE2 (PHP >=7.3)
apsmart.mobi
Submitted by anonymous - 4 months ago
1

Currency Amount

PCRE2 (PHP >=7.3)
banglore.club
Submitted by anonymous - 4 months ago
1

Non-Greedy Match

PCRE2 (PHP >=7.3)
bushrevealed.com
Submitted by anonymous - 4 months ago
1

Email with Optional Subdomain

PCRE2 (PHP >=7.3)
buzz3r.com
Submitted by anonymous - 4 months ago
1

Extract Phone Number with Extension

PCRE2 (PHP >=7.3)
cashewa.com
Submitted by anonymous - 4 months ago
1

Match Email with Domain Validation

PCRE2 (PHP >=7.3)
derm-link.com
Submitted by anonymous - 4 months ago
1

Validate Credit Card Expiration Date

PCRE2 (PHP >=7.3)
digitalogymedia.com
Submitted by anonymous - 4 months ago
1

Match URL Path with Optional Query Params

PCRE2 (PHP >=7.3)
diversitystars.com
Submitted by anonymous - 4 months ago
1

Match Safe Filename

PCRE2 (PHP >=7.3)
gotacos.net
Submitted by anonymous - 4 months ago
1

Match Valid Bitcoin Address

PCRE2 (PHP >=7.3)
insite09.com
Submitted by anonymous - 4 months ago
1

Match Valid Ethereum Address

PCRE2 (PHP >=7.3)
kontent.co.in
Submitted by anonymous - 4 months ago
1

Matching Dates with Day of Week (e.g., Monday, August 14, 2024)

PCRE2 (PHP >=7.3)
mayurscanecorner.com
Submitted by anonymous - 4 months ago
1...847848849850851...902

Community Library Entry

1

Regular Expression
Python

r"
^\d{4}-\d{2}-\d{2}\s+\S+\s\S+\sERROR.*?\n\d{4}-\d{2}-\d{2}
"
gsm
Open regex in editor

Description

regex to consider exceptions in log4j

Submitted by anonymous - 10 years ago