Regular Expressions 101

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Community Patterns

1

Match a string with nested brackets

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

Match a string with alternating uppercase and lowercase letters

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

Match a date in DD-MM-YYYY format

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

Match Word Characters with Optional Hyphens

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

Match Nested Parentheses and Brackets

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

Extract HTML Content Between Tags

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

Match URL with Optional Protocol

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

Match Postal Codes (US Format)

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

Extract All Matches from a Text

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

Match String with Limited Length

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

Match Specific Year Format (YYYY)

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

Match Valid Email Addresses with Local Part Length

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

Match Social Security Numbers (US)

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

Match Currency Amount with Optional Symbols

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

Match IP Address with Subnet

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

Match Complex Strings with Nested Patterns

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

Match HTML Entities

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

Extract Mixed Content (Text and Numbers)

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

Match Hexadecimal Strings

PCRE2 (PHP >=7.3)
ud2002.org
Submitted by anonymous - 4 months ago
1

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

PCRE2 (PHP >=7.3)
monsterdare.com
Submitted by anonymous - 4 months ago
1...359360361362363...902

Community Library Entry

0

Regular Expression
PCRE (PHP <7.3)

/
^(0[1-9]|[1-2][0-9]|3[0-1])(0[1-9]|1[0-2])[0-9]{2}[0-2][0-9]{4}$
/
gm
Open regex in editor

Description

no description available

Submitted by anonymous - 5 years ago