Regular Expressions 101

Social

Join the Discord community!
Follow me on twitter!
Send me an email

Donate

Donate through Paypal
Become a Github Sponsor

Info

Find out what's new!
RegEx101 Wiki
Report bugs or make suggestions

Live Help

Get help on Discord
Get help on IRC

Order By

Sponsors

Community Patterns

1

search mailadress

PCRE (PHP <7.3)
no description available
Submitted by anonymous - 9 years ago
4

Remove HTML tags

PCRE (PHP <7.3)
This regex is used to remove HTML tag on string
Submitted by Jordane BACHELET - 9 years ago
1

Mips I-Type Instructions

PCRE (PHP <7.3)
Parses an I-Type Mips instruction. You can add and remove instructions in the list to support more I-Type instructions. Will detect only "addi", "andi" or "ori" as is
Submitted by lunfel - 9 years ago
1

Mips R-Type Instructions

PCRE (PHP <7.3)
Parses an R-Type Mips instruction. You can add and remove instructions in the list to support more R-Type instructions. Will detect only "add", "and", "nor" or "sub" as is
Submitted by lunfel - 9 years ago
1

find single character

PCRE (PHP <7.3)
Why this regEx not find all single character? Why not work Start of string and End of string in bracket?
Submitted by anonymous - 9 years ago
-2

get all href=()

PCRE (PHP <7.3)
no description available
Submitted by artyom lisovskij - 9 years ago
1

Convert YYMMDD to DD/MM/YY

PCRE (PHP <7.3)
I'm new to regular expressions and I've been searching high and low for this really simple date conversion from YYMMDD to DD/MM/YY e.g. 140923 to 23/09/14. Maybe I just didn't search hard enough, but here goes: Search/original string: (\d{4})(\d{2})(\d{2}) ...
Submitted by Nike Begbaaji - 9 years ago
1

testmmoj

PCRE (PHP <7.3)
no description available
Submitted by anonymous - 9 years ago
1

Match Tags in ExpressionEngine

PCRE (PHP <7.3)
The second matcher will get EE tags from $tagdata.
Submitted by Kyle Palko - 9 years ago
0

number with or without thousands separator(.) and decimal part(,)

PCRE (PHP <7.3)
number with or without thousands separator(.) and decimal part(,) ES: 100000; 1.646; 13323,33; 3.444.434,44
Submitted by Basten - 9 years ago
12

URL Validator

PCRE (PHP <7.3)
Validates - URLs with schemes - http, https and ftp Relative URL starting with / and ../
Submitted by anonymous - 9 years ago
2

SO “00000000000000000000000000000” is match to Regex “^[1-9]|0$” in .N

PCRE (PHP <7.3)
Test regex for question.
Submitted by pwas - 9 years ago
2

find numeric groups in strings

PCRE (PHP <7.3)
no description available
Submitted by Vovan - 9 years ago
1

Grab {\w+?} together

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

Replace text domain in WP i18n

PCRE (PHP <7.3)
This will find all instances where the WP i18n function __() is used, and change the text domain to something else. This will recognize instances of the function use as separate, even if they appear in the same function
Submitted by Xedin Unknown - 9 years ago
2

Li match

PCRE (PHP <7.3)
no description available
Submitted by anonymous - 9 years ago
1

Validate alphanumeric and numeric range

PCRE (PHP <7.3)
For Validating alphanumeric and numeric range
Submitted by anonymous - 9 years ago
-1

regex test

PCRE (PHP <7.3)
testing the string abc xyx 12 13 a a b
Submitted by Alien Coders - 9 years ago
(Last modified 2 months ago)
0

Share?

PCRE (PHP <7.3)
Test
Submitted by test - 9 years ago
1

URL REGULAR EXPRESSION CHALLENGE

PCRE (PHP <7.3)
Follow the instructions to match/don't match the following urls. Then post to comminity with title: [URL CHALLENGE]:
Submitted by kostas trichas - 9 years ago
1...462463464465466467468...481

semver

4

Regular Expression
Recommended
PCRE (PHP <7.3)

/
^(?'MAJOR'0|(?:[1-9]\d*))\.(?'MINOR'0|(?:[1-9]\d*))\.(?'PATCH'0|(?:[1-9]\d*))(?:-(?'prerelease'(?:0|(?:[1-9A-Za-z-][0-9A-Za-z-]*))(?:\.(?:0|(?:[1-9A-Za-z-][0-9A-Za-z-]*)))*))?(?:\+(?'build'(?:0|(?:[1-9A-Za-z-][0-9A-Za-z-]*))(?:\.(?:0|(?:[1-9A-Za-z-][0-9A-Za-z-]*)))*))?$
/
gm
Open regex in editor

Description

Loading markdown...
Submitted by @gvlx <Gerardo Lisboa> - 9 years ago