Regular Expressions 101

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Community Patterns

-18

dd-mm-YYYY HH:mm:ss (year range 1000-2999)

PCRE (PHP <7.3)
Validate Gregorian calendar dates that contain 24-hour times. This will also correctly match the Feb 29 date when it falls on a valid leap year. Leap years occur every 4 years, with one exception: when a year is evenly divisible by 100 but not evenly divisible by 400, the year will not be a leap ye...
Submitted by Ka. - 11 years ago (Last modified a year ago)
-4

Date with this format YYYY-MM-DD and year start 20 or 21

PCRE (PHP <7.3)
Date with this format YYYY-MM-DD and year start 20 or 21 like 2014
Submitted by cisc0 - 11 years ago
-3

Date and Time

PCRE (PHP <7.3)
no description available
Submitted by anonymous - 11 years ago
-3

Latitude/longitude tester

PCRE (PHP <7.3)
Tests the string if it does contain valid latitude and longitude parameters
Submitted by Doro - 11 years ago
-3

british postcode check

PCRE (PHP <7.3)
no description available
Submitted by anonymous - 10 years ago
-3

British Postcode Check

PCRE (PHP <7.3)
no description available
Submitted by guest - 10 years ago
-3

regex help

PCRE (PHP <7.3)
help please. i need regex,
Submitted by James - 10 years ago
-3

mama

PCRE (PHP <7.3)
no description available
Submitted by anonymous - 10 years ago
-3

Select a HTML table and all its innerHTML

PCRE (PHP <7.3)
no description available
Submitted by @ixzy24 - 10 years ago
-3

Match email addresses and get the mail provider as a group

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

RegEX for account code starting with 000-

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

Telephone

PCRE (PHP <7.3)
Find Telephone
Submitted by Mr.Fail - 9 years ago
-3

FQDN Fully Qualified Domain Name

PCRE (PHP <7.3)
no description available
Submitted by Rafael Justo and Mauro Trajber - 9 years ago
-3

ipv4 - short version

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

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

PCRE (PHP <7.3)
no description available
Submitted by anonymous - 9 years ago
123...467

Community Library Entry

2

Regular Expression
PCRE (PHP <7.3)

/
[\x00-\x1F\x7F<>:"\/\\|?*]
/
gm
Open regex in editor

Description

https://docs.microsoft.com/en-us/windows/win32/fileio/naming-a-file

Integer value zero, sometimes referred to as the ASCII NUL character.

Characters whose integer representations are in the range from 1 through 31, except for alternate data streams where these characters are allowed. For more information about file streams, see File Streams.

The following reserved characters:

  • < (less than)
  • > (greater than)
  • : (colon)
  • " (double quote)
  • / (forward slash)
  • \ (backslash)
  • | (vertical bar or pipe)
  • ? (question mark)
  • * (asterisk)
Submitted by anonymous - a year ago (Last modified a year ago)