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1
Regular Expression
PCRE (PHP <7.3)
/
(
(
2
[
0
-
4
]
\d
|
25
[
0
-
5
]
|
1
?
\d
?
\d
)
\.
){3}
(
2
[
0
-
4
]
\d
|
25
[
0
-
5
]
|
1
?
\d
?
\d
)
/
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Description
shortest ip validation regex
Submitted by
Giacomo.
-
9 years ago