Regular Expressions 101

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Community Patterns

1

Match Hexadecimal Strings

PCRE2 (PHP >=7.3)
ud2002.org
Submitted by anonymous - 25 days ago
1

Match Version Numbers (e.g., 1.0.0, 2.3.4)

PCRE2 (PHP >=7.3)
monsterdare.com
Submitted by anonymous - 25 days ago
1

Extract Domain Names with TLD

PCRE2 (PHP >=7.3)
salientsocial.com
Submitted by anonymous - 25 days ago
1

Match Strings with Special Characters

PCRE2 (PHP >=7.3)
myplacepoints.com
Submitted by anonymous - 25 days ago
1

Extract Non-Alpha Numeric Characters

PCRE2 (PHP >=7.3)
quickpicapp.com
Submitted by anonymous - 25 days ago
1

Match Hexadecimal Color with Optional Alpha

PCRE2 (PHP >=7.3)
theunjob.com
Submitted by anonymous - 25 days ago
1

Match Nested HTML Tags

PCRE2 (PHP >=7.3)
techono.me
Submitted by anonymous - 25 days ago
1

Match Floating Numbers with Optional Scientific Notation

PCRE2 (PHP >=7.3)
thecoversproject.org
Submitted by anonymous - 25 days ago
1

Match URL Parameters with Optional Values

PCRE2 (PHP >=7.3)
youngfreeflorida.com
Submitted by anonymous - 25 days ago
1

Match XML Self-Closing Tags

PCRE2 (PHP >=7.3)
comicdiversity.com
Submitted by anonymous - 25 days ago
1

Extract Dates in Long Format

PCRE2 (PHP >=7.3)
simplicitylabs.net
Submitted by anonymous - 25 days ago
1

Extract Phone Numbers (International)

PCRE2 (PHP >=7.3)
spooonful.com
Submitted by anonymous - 25 days ago
1

Extract HTML Attribute Values

PCRE2 (PHP >=7.3)
statussearch.net
Submitted by anonymous - 25 days ago
1

Extract Multi-Line Comments (JavaScript)

PCRE2 (PHP >=7.3)
sinceretheory.net
Submitted by anonymous - 25 days ago
1

Match Phone Numbers with Extensions

PCRE2 (PHP >=7.3)
canitbenews.com
Submitted by anonymous - 25 days ago
1

Match Lines Starting with Specific Word

PCRE2 (PHP >=7.3)
ecuadorminingnews.com
Submitted by anonymous - 25 days ago
1

Extract Non-Alphanumeric Characters

PCRE2 (PHP >=7.3)
thebuzzkillers.com
Submitted by anonymous - 25 days ago
1

Match Recursive Patterns (HTML-like)

PCRE2 (PHP >=7.3)
hackerchat.co
Submitted by anonymous - 25 days ago
1

Find Number with Units (e.g., 10kg, 5m)

PCRE2 (PHP >=7.3)
ericaleerhsen.net
Submitted by anonymous - 25 days ago
1

Extract Key-Value Pairs

PCRE2 (PHP >=7.3)
gennexbrands.com
Submitted by anonymous - 25 days ago
1...137138139140141...148

Match any layer bracket pair (.NET)

3

Regular Expression
.NET 7.0 (C#)

@"
\w+\([^()]*(((?'parenthesesPair'\()[^()]*)+((?'-parenthesesPair'\))[^()]*)+)*(?(parenthesesPair)(?!))\)
"
gm
Open regex in editor

Description

Match any layer bracket pair

Submitted by Yakumo Yukari - 2 years ago