Regular Expressions 101

Library entries

IPv4

Vote

18

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}$
/

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Submitted by robwa - 6 years ago