Regular Expressions 101

Community Patterns

IP address regex of IPV4

-1

Regular Expression
PCRE (PHP <7.3)

/
((25[0-5])|(2[0-4][0-9])|(1[0-9][0-9])|([1-9][0-9])|([0-9]))[.]((25[0-5])|(2[0-4][0-9])|(1[0-9][0-9])|([1-9][0-9])|([0-9]))[.]((25[0-5])|(2[0-4][0-9])|(1[0-9][0-9])|([1-9][0-9])|([0-9]))[.]((25[0-5])|(2[0-4][0-9])|(1[0-9][0-9])|([1-9][0-9])|([0-9]))
/
m

Description

The given regex matches the IPV4 address of given ip address string.

Submitted by Ayush - 8 years ago