Regular Expressions 101

Community Patterns

IPv4 validation

0

Regular Expression
PCRE (PHP <7.3)

/
^(?:(?:25[0-5]|2[0-4][0-9]|[01]?[0-9][0-9]?)\.){3}(?:25[0-5]|2[0-4][0-9]|[01]?[0-9][0-9]?)$
/
gm

Description

no description available

Submitted by anonymous - 5 years ago