Regular Expressions 101

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Community Patterns

-3

UpperCase words

PCRE (PHP <7.3)
no description available
Submitted by ivo - 9 years ago
-3

a

PCRE (PHP <7.3)
a
Submitted by a - 9 years ago
-3

Facebook url regex

PCRE (PHP <7.3)
no description available
Submitted by Devs Devaras - 9 years ago
-3

Replace abba with ABBA

PCRE (PHP <7.3)
no description available
Submitted by anonymous - 9 years ago
-3

get table name from mapfile

PCRE (PHP <7.3)
gets a postgis tablename from a mapfile with the given layer name, may not work depending on your mapfile layout
Submitted by warnock - 9 years ago
-3

Html Tags

ECMAScript (JavaScript)
Matches HTML structure
Submitted by sagar - 9 years ago
-3

Clean empty tags from HTML tags incl. tags containing space(s)

PCRE (PHP <7.3)
no description available
Submitted by anonymous - 9 years ago
-3

matching words between tags

ECMAScript (JavaScript)
matching words between square brachets tags include newline or carriage return
Submitted by anonymous - 9 years ago
-3

Remove special character at first position of string

PCRE (PHP <7.3)
This search for special character at first position in the string
Submitted by anonymous - 9 years ago
-3

retrieve hostname without subdomain

PCRE (PHP <7.3)
no description available
Submitted by Diego Zuluaga - 9 years ago
-3

TD data from html table

Python
no description available
Submitted by Deepak Bansal - 9 years ago
-3

Regex Include & Exclude

PCRE (PHP <7.3)
Exclude part of a string in an include string.
Submitted by anonymous - 9 years ago
-3

IPv4 address

Python
Matches any IPv4 address
Submitted by anonymous - 9 years ago
-3

Xml Parser (improved description)

PCRE (PHP <7.3)
]+)\s()\s(?:\/>|>(.)) - (with global) finds all tags in scope 1st group is tagname 2nd group is attributes 3rd group (if it exists) is value of the tag ...
Submitted by veryanonymous - 9 years ago
-3

Working With Data regex sample text

PCRE2 (PHP >=7.3)
This is a sample text for use at my "Working With Data" workshop session on regular expressions.
Submitted by anonymous - 3 years ago
-2

Finds HTML img tags

PCRE (PHP <7.3)
no description available
Submitted by Matt Solum - 11 years ago
-2

Remove namespaces

PCRE (PHP <7.3)
no description available
Submitted by anonymous - 11 years ago
-2

Date time

PCRE (PHP <7.3)
no description available
Submitted by Mr.Neutro - 11 years ago
-2

Russian mobile number normilizer (dumb)

PCRE (PHP <7.3)
no description available
Submitted by fullpipe - 11 years ago
-2

non-negative integer

ECMAScript (JavaScript)
repeat ... refactor
Submitted by jay johnson - 11 years ago
1234...902

Community Library Entry

0

Regular Expression
PCRE2 (PHP >=7.3)

/
^(?:([1-9]?[0-9]|1[0-9]{2}|2[0-4][0-9]|25[0-5])\.){3}(?1)$
/
gm
Open regex in editor

Description

Given a string, the regex would match if it is a valid IPv4 address.

Submitted by A-Paint-Brush - 4 months ago (Last modified 4 months ago)