Regular Expressions 101

Community Patterns

IPv4 w/ w/o port validation and localhost string supported

0

Regular Expression
PCRE (PHP <7.3)

/
^(((25[0-5]|2[0-4][0-9]|1[0-9][0-9]|[0-9]{1,2})(\\.(25[0-5]|2[0-4][0-9]|1[0-9][0-9]|[0-9]{1,2})){3})|(localhost))(:((6553[0-5])|(655[0-2][0-9])|(65[0-4][0-9]{2})|(6[0-4][0-9]{3})|([1-5][0-9]{4})|([0-5]{1,5})|([0-9]{1,4})))?$|^$
/
gm

Description

IPv4 w/ w/o port validation and localhost string supported

Submitted by anonymous - 2 years ago