Regular Expressions 101

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Library entries

8
pcre

Alphanumeric and Spaces

Alow alphanumeric characters and spaces
Submitted by JTN - 7 years ago
8
pcre

If-Then-Else Conditionals

no description available
Submitted by anonymous - 7 years ago
8
pcre

Fiddler raw body to PHP array

no description available
Submitted by garsax - 7 years ago
8
pcre

Max - URL Extract

no description available
Submitted by Ayush - 7 years ago
9
pcre

Validate Base64 single-line string

no description available
Submitted by ka. - 9 years ago
9
pcre

Fixo LDN CSP e SEM CSP

no description available
Submitted by Marcos Müller - 8 years ago
9
pcre

only numbers

A string with only numbers in
Submitted by Gotts - 7 years ago
10
pcre

remove comments from php code

no description available
Submitted by anonymous - 8 years ago

IPv4

Vote

16

Regular Expression
pcre

/
^(?:25[0-5]|2[0-4]\d|[0-1]?\d{1,2})(?:\.(?:25[0-5]|2[0-4]\d|[0-1]?\d{1,2})){3}$
/

Description

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Submitted by robwa - 7 years ago