Regular Expressions 101

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Community Patterns

13

URL Validator

PCRE (PHP <7.3)
Validates - URLs with schemes - http, https and ftp Relative URL starting with / and ../
Submitted by anonymous - 10 years ago
8

Alphanumeric and Spaces

PCRE (PHP <7.3)
Alow alphanumeric characters and spaces
Submitted by JTN - 9 years ago (Last modified 9 months ago)
11

Date(Including Leap Year) YYYY-MM-DD hh:mm:ss

PCRE (PHP <7.3)
Validates DateTime of format YYYY-MM-DD hh:mm:ss including Leap Year
Submitted by Madhan - 10 years ago
8

Date time Advanced

PCRE (PHP <7.3)
no description available
Submitted by Mr.Neutro - 10 years ago
7

PAN CARD validation

PCRE (PHP <7.3)
checks for valid PAN card for Indian users.
Submitted by karan thakkar - 10 years ago
6

Repair unquoted HTML attribute values

PCRE (PHP <7.3)
Usually MSWord HTML exports
Submitted by Ka. - 11 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 - 9 years ago
5

Latitude,Longitude fetcher

PCRE (PHP <7.3)
Useful to work with GoogleMap API.
Submitted by anonymous - 9 years ago
5

ipv6

PCRE (PHP <7.3)
Match an ipv6 address
Submitted by Frusty - 8 years ago
9

only numbers

PCRE (PHP <7.3)
A string with only numbers in
Submitted by Gotts - 8 years ago
9

Youtube ID match

PCRE (PHP <7.3)
This regex will match any Youtube video ID thrown at it and return one capturing group containing the ID.
Submitted by Jacob Overgaard - 10 years ago
8

Validate Base64 single-line string

PCRE (PHP <7.3)
no description available
Submitted by ka. - 11 years ago
6

HTML tag stripper

PCRE (PHP <7.3)
This regex will identify all html start and end tags.
Submitted by anonymous - 8 years ago
8

Extract Protocol, URL, URL Path, get parameters and hash from URI

Python
This is simplified from my last submission.
Submitted by Dale O'Brien - 10 years ago
4

Phone number

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

SQL select columns

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

Task 2, part 1

PCRE (PHP <7.3)
Finds all source numbers in square brackets
Submitted by Kovalev Evgeny - 10 years ago
3

how to match both lines?

Python
f_name may contain spaces, numbers, characters,... so I would go for a but then I couldn't use [...]? anymore to match the second line?
Submitted by anonymous - 10 years ago
3

Find URLs in markdown where the lines have been wrapped

Python
no description available
Submitted by anonymous - 10 years ago
3

URL with matching categories

PCRE (PHP <7.3)
Finds the protocol, subdomain, ((domain, extension)/ipaddress), port, filepath (split in path and filename), the route and the query string.
Submitted by fps - 9 years ago
1...45678...694

1st TSV

4

Regular Expression
PCRE (PHP <7.3)

/
(\w+)\s.*
/
g
Open regex in editor

Description

no description available

Submitted by DynV - 11 years ago