Regular Expressions 101

Community Patterns

4

import url image

Python
import url image
Submitted by bartimeys - 8 years ago
4

CloudFlare

PCRE2 (PHP >=7.3)
Cloud Flare
Submitted by anonymous - 2 years ago
4

Email

PCRE2 (PHP >=7.3)
email format control
Submitted by ahmetbarut - 2 years ago

IPv4 Validator

8

Regular Expression
PCRE (PHP <7.3)

/
^(?:(?:25[0-5]|2[0-4]\d|1?\d{1,2})(?:\.(?!$)|$)){4}$
/
gm

Description

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Submitted by anonymous - 3 years ago
(Last modified 2 months ago)