Regular Expressions 101

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Community Patterns

1

Extract Non-Alpha Numeric Characters

PCRE2 (PHP >=7.3)
quickpicapp.com
Submitted by anonymous - 3 months ago
1

Match Hexadecimal Color with Optional Alpha

PCRE2 (PHP >=7.3)
theunjob.com
Submitted by anonymous - 3 months ago
1

Match Nested HTML Tags

PCRE2 (PHP >=7.3)
techono.me
Submitted by anonymous - 3 months ago
1

Match Floating Numbers with Optional Scientific Notation

PCRE2 (PHP >=7.3)
thecoversproject.org
Submitted by anonymous - 3 months ago
1

Match URL Parameters with Optional Values

PCRE2 (PHP >=7.3)
youngfreeflorida.com
Submitted by anonymous - 3 months ago
1

Match XML Self-Closing Tags

PCRE2 (PHP >=7.3)
comicdiversity.com
Submitted by anonymous - 3 months ago
1

Extract Dates in Long Format

PCRE2 (PHP >=7.3)
simplicitylabs.net
Submitted by anonymous - 3 months ago
1

Extract Phone Numbers (International)

PCRE2 (PHP >=7.3)
spooonful.com
Submitted by anonymous - 3 months ago
1

Extract HTML Attribute Values

PCRE2 (PHP >=7.3)
statussearch.net
Submitted by anonymous - 3 months ago
1

Extract Multi-Line Comments (JavaScript)

PCRE2 (PHP >=7.3)
sinceretheory.net
Submitted by anonymous - 3 months ago
1

Match Phone Numbers with Extensions

PCRE2 (PHP >=7.3)
canitbenews.com
Submitted by anonymous - 3 months ago
1

Match Lines Starting with Specific Word

PCRE2 (PHP >=7.3)
ecuadorminingnews.com
Submitted by anonymous - 3 months ago
1

Extract Non-Alphanumeric Characters

PCRE2 (PHP >=7.3)
thebuzzkillers.com
Submitted by anonymous - 3 months ago
1

Match Recursive Patterns (HTML-like)

PCRE2 (PHP >=7.3)
hackerchat.co
Submitted by anonymous - 3 months ago
1

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

PCRE2 (PHP >=7.3)
ericaleerhsen.net
Submitted by anonymous - 3 months ago
1

Extract Key-Value Pairs

PCRE2 (PHP >=7.3)
gennexbrands.com
Submitted by anonymous - 3 months ago
1

Match Balanced Brackets

PCRE2 (PHP >=7.3)
popninjas.com
Submitted by anonymous - 3 months ago
1

Match Text with Optional Tags

PCRE2 (PHP >=7.3)
thestorrier.com
Submitted by anonymous - 3 months ago
1

Extract JSON Arrays

PCRE2 (PHP >=7.3)
raceonline2012.org
Submitted by anonymous - 3 months ago
1

Extract CSV Rows

PCRE2 (PHP >=7.3)
btcmarin.org
Submitted by anonymous - 3 months ago
1...360361362363364...900

Community Library Entry

0

Regular Expression
ECMAScript (JavaScript)

/
http(?:s)?\:\/\/boards\.(4chan|4channel)\.org\/([a-z]*)\/thread\/([0-9]*)(?:\#[0-9a-z]*)?
/
g
Open regex in editor

Description

Match any 4chan thread url as of 08/2022

Submitted by anonymous - 2 years ago