Regular Expressions 101

Order By

Sponsors
There are currently no sponsors. Become a sponsor today!

Community Patterns

1

PHP ReflectionParameter:__toString() parser

PCRE (PHP <7.3)
See http://www.php.net/manual/en/reflectionparameter.tostring.php
Submitted by Erin Millard - 12 years ago
-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)
0

DateTime: DD-MM-YYYY HH:mm:ss

PCRE (PHP <7.3)
Validate and Capture (in 1000-2999 range) Leap-Year Correct
Submitted by anonymous - 11 years ago
0

negated special characters

PCRE (PHP <7.3)
no description available
Submitted by Rimjhim - 11 years ago
4

Task 1

PCRE (PHP <7.3)
Finds a happy smile, except sad one
Submitted by Kovalev Evgeny - 11 years ago
2

named group sample

PCRE (PHP <7.3)
no description available
Submitted by anonymous - 10 years ago
1

Matching Multiline Strings in Large Text File

PCRE (PHP <7.3)
Need Help, Matching Multiline Strings in Large Text File
Submitted by jholderman - 10 years ago
3

php input:date yyyy-mm-dd

PCRE (PHP <7.3)
improved "Ahmed Z" regexp. PHP date format (and input[type=text] format date too): YYYY-MM-DD. Year between [1900-2099]. No leap year check. Month 02 is limited to 29 days.
Submitted by Oropesa - 10 years ago
3

youtube id match

PCRE (PHP <7.3)
youtube id 17 matches
Submitted by Wiliam Castilhos, Ramon Barros - 10 years ago
3

ISO 8601 date

PCRE (PHP <7.3)
Validates a date with ISO 8601 format. Source: http://www.pelagodesign.com/blog/2009/05/20/iso-8601-date-validation-that-doesnt-suck/
Submitted by anonymous - 10 years ago
5

parsing CSV file

PCRE (PHP <7.3)
It correctly handles simple values, empty values, and quoted values with commas inside.
Submitted by Viktor Lova aka nsinreal - 10 years ago
1

4-digit numeric w/o leading zero and no repeat digits

PCRE (PHP <7.3)
no description available
Submitted by anonymous - 10 years ago
1

french phone number (intl format)

PCRE (PHP <7.3)
little matcher for french phone number in international format (example: +33231348228)
Submitted by Nolwennig - 9 years ago
3

white space before punctuations, outside script and code tags

PCRE (PHP <7.3)
white space before punctuations, outside script and code tags
Submitted by ced - 9 years ago
1

IP v4 format validation

PCRE (PHP <7.3)
Valid 0.0.0.0 1.1.1.1 101.101.101.101 255.255.255.255 156.0.1.10...
Submitted by NexRezzo - 9 years ago
1

Indian Phone Numbers!

PCRE (PHP <7.3)
This is not supported in Javascript! Works well for php, python. Examples: +91-8800119719, 08800119719, 8800119719, +918800119719 etc.
Submitted by Prateek Jain - 9 years ago
4

IPV4 address validation using recursion

PCRE (PHP <7.3)
Validate IPv4 addresses using PCRE's recursion patterns. A shorter but less efficient alternative to https://regex101.com/r/wZ6oY5/1
Submitted by Captain Haddock - 9 years ago
5

Latitude,Longitude fetcher

PCRE (PHP <7.3)
Useful to work with GoogleMap API.
Submitted by anonymous - 9 years ago
3

Perl

PCRE (PHP <7.3)
no description available
Submitted by anonymous - 9 years ago
2

string contains

PCRE (PHP <7.3)
no description available
Submitted by mgaus - 9 years ago
1...45678...461

Community Library Entry

0

Regular Expression
Rust

r"
\b(0x)?\p{Hex_Digit}+\b
"
g
Open regex in editor

Description

Find hexadecimal numbers using Extended Unicode Support.

Submitted by anonymous - a year ago (Last modified a year ago)