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Community Library Entry
0
Regular Expression
PCRE2 (PHP >=7.3)
/
^
(?:
(
[
1
-
9
]
?
[
0
-
9
]
|
1
[
0
-
9
]
{2}
|
2
[
0
-
4
]
[
0
-
9
]
|
25
[
0
-
5
]
)
\.
){3}
(?1)
$
/
gm
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Description
Given a string, the regex would match if it is a valid IPv4 address.
Submitted by
A-Paint-Brush
-
5 months ago
(Last modified 5 months ago)