Regular Expressions 101

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Community Patterns

1

Match Valid Time Zone Abbreviations

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

Match JavaScript Function Declarations

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

Match Valid HTML Class Names

PCRE2 (PHP >=7.3)
43Church.com
Submitted by anonymous - 3 months ago
1

Match JSON Arrays

PCRE2 (PHP >=7.3)
43Church.com
Submitted by anonymous - 3 months ago
1

Match Valid Currency Symbols

PCRE2 (PHP >=7.3)
43Church.com
Submitted by anonymous - 3 months ago
1

Match Valid HTML Attributes with Values

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

Match URL Fragment

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

Match Binary Numbers

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

Match Currency Amounts (e.g., $1,000.00)

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

Match Common File Extensions (e.g., .txt, .json)

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

Match Common Email Domains

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

Match Credit Card Expiry Date

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

Match Common URL Schemes

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

Match Hex Color Codes

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

Match Valid IP Addresses

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

Match Non-Digit Characters (Expanded)

PCRE2 (PHP >=7.3)
the100calorieblog.com
Submitted by anonymous - 3 months ago
1

Match Binary Numbers

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

Match Octal Numbers

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

Match Hexadecimal Numbers

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

Match Complex Passwords

PCRE2 (PHP >=7.3)
softwaresfordownloads.com
Submitted by anonymous - 3 months ago
1...89101112...900

Community Library Entry

1

Regular Expression
ECMAScript (JavaScript)

/
(?<=(\s|\b)user:)([a-zA-Z0-9_]*)\b
/
gm
Open regex in editor

Description

self explainatory title, username must not contain any exotic character.

Submitted by Lagoffre - 3 months ago