Regular Expressions 101

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Community Patterns

1

Email validation

ECMAScript (JavaScript)
complete one email validation regex
Submitted by amine.hallili@gmail.com - 9 years ago
1

IP address validation

PCRE (PHP <7.3)
shortest ip validation regex
Submitted by Giacomo. - 9 years ago
1

JS No space title

ECMAScript (JavaScript)
Numbers, letters, and underscore with no special characters, no spaces, no leading number, and no leading or trailing underscore for use in KnockoutJS (or any JS validation).
Submitted by Owen Dismuke - 9 years ago
1

For Version Number

PCRE (PHP <7.3)
Validation for version numbers like 33.3.33
Submitted by Gokul - 9 years ago
1

ipv6 validation

PCRE (PHP <7.3)
Matches all IPv6 Addresses (without Port) fe80::21d8:f50:c295:c4be 2001:cdba:0000:0000:0000:0000:3257:9652 2001:cdba:0:0:0:0:3257:9652 2001:cdba::3257:9652 2001:cdba::1222...
Submitted by Aleksandar Trkulja - 9 years ago
1

EIN Validation

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

Dates validation

PCRE (PHP <7.3)
Not accurate
Submitted by anonymous - 9 years ago
1

Perfect URL Validation

ECMAScript (JavaScript)
no description available
Submitted by anonymous - 9 years ago
1

LiveRes

PCRE (PHP <7.3)
Postcode Validation
Submitted by Dan Manning - 9 years ago
1

Date validation in dd MMM yyyy format

PCRE (PHP <7.3)
Date validation in dd MMM yyyy format Ex:14 Jan 2014
Submitted by neel - 9 years ago
1

Email

PCRE (PHP <7.3)
Refunds email validation
Submitted by Greg Kedge - 9 years ago
1

Password Validation 8-32 chars

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

E-mail validation

ECMAScript (JavaScript)
no description available
Submitted by anonymous - 9 years ago
0

Resource ID validation regex

ECMAScript (JavaScript)
Validator for a typical resource ID string
Submitted by WinCPP - 9 years ago
1

Date validation mm/dd/yyyy

PCRE (PHP <7.3)
Date validation mm/dd/yyyy
Submitted by Girish - 9 years ago
0

London postcodes

PCRE (PHP <7.3)
No perfect, missing GIR postcodes, but should match most of the postcodes for extraction. It's not a postcode validator, just an extractor, validation should be done after extraction.
Submitted by anonymous - 9 years ago
1

Email validate

ECMAScript (JavaScript)
Validation of email with no allow to only special char before and after @ symbol, generic validation for domain
Submitted by Kamil Popis - 9 years ago
1

email

PCRE (PHP <7.3)
email validation
Submitted by Chandan - 9 years ago
1

Email Validation

ECMAScript (JavaScript)
Allow TLDs with 2 or more characters
Submitted by anonymous - 9 years ago
1

Email address validation

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