Regular Expressions 101

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Community Patterns

35

IP Address validator

ECMAScript (JavaScript)
Validates IPv4 IP Address
Submitted by krzysp - 10 years ago
15

IPv4

PCRE (PHP <7.3)
no description available
Submitted by robwa - 10 years ago
5

ipv6 Validation

PCRE (PHP <7.3)
Handle all condition for ipv6 example: 1) FE80::8329 2) FE80::FFFF:8329 3) FE80::B3FF:FFFF:8329 4) FE80::0202:B3FF:FFFF:8329...
Submitted by Lim Yew Teck, Nicholas - 10 years ago
9

IPv4 Validator

PCRE (PHP <7.3)
no description available
Submitted by anonymous - 5 years ago (Last modified 2 years ago)
1

IPv4&IPv6 URL validation regular expression

PCRE (PHP <7.3)
no description available
Submitted by Henry Li - 11 years ago
4

IPV4 address validation using recursion

PCRE (PHP <7.3)
Validate IPv4 addresses using PCRE's recursion patterns. A shorter but less efficient alternative to https://regex101.com/r/wZ6oY5/1
Submitted by Captain Haddock - 10 years ago
5

ipv6

PCRE (PHP <7.3)
Match an ipv6 address
Submitted by Frusty - 9 years ago
4

vowel words

ECMAScript (JavaScript)
(!-\~][aeiou)
Submitted by Ipsita Mohanty - 10 years ago
1

IPv4 extraction

Python
no description available
Submitted by Jacob - 11 years ago
2

Dotted Decimal IPv4 Adress (for programming languages)

PCRE (PHP <7.3)
Searches for dotted decimal IPv4 Adresses and saves the numbers in match groups.
Submitted by anonymous - 10 years ago
3

IPv4 validation

ECMAScript (JavaScript)
validate an IP v4
Submitted by harimambura - 9 years ago
2

IPv4

PCRE (PHP <7.3)
no description available
Submitted by Jorge C. - 11 years ago
3

Match a valid IPv4 or IPv6 address

PCRE (PHP <7.3)
This regular expression will match an IPv4 address as well as both compressed or uncompressed IPv6 address.
Submitted by Tom Groeneveld, SevOne.com - 9 years ago
3

URL with matching categories

PCRE (PHP <7.3)
Finds the protocol, subdomain, ((domain, extension)/ipaddress), port, filepath (split in path and filename), the route and the query string.
Submitted by fps - 11 years ago
-2

Find a IPV4

ECMAScript (JavaScript)
no description available
Submitted by Jon Dotsoy - 10 years ago
2

IPv4 Validator

Python
no description available
Submitted by dannyo - 10 years ago
3

regex101: RFC1918 Private IPv4 Addresses, but limited to matching /24 subnet host IDs

PCRE2 (PHP >=7.3)
POSIX ERE compatible, suitable for usage in Bash [ testing Attributions Derived from [regex101: RFC1918 - Private IPv4 addresses by 0100101101001.
Submitted by anonymous - 2 years ago
2

Parse "ipconfig /all" output and grab all MAC Adresses

PCRE (PHP <7.3)
Parse "ipconfig /all" output and grab all MAc Adresses.
Submitted by j0inty - 10 years ago
-2

IPv4

Python
allows for all legal IPv4 addresses
Submitted by anonymous - 10 years ago
1

ipv4 IP addressses, capturing private ranges

PCRE (PHP <7.3)
Capture 0.0.0.0-255.255.255.255 IP address octets. Capture private ranges, such as '169.254.' and '10.'
Submitted by OnlineCop - 10 years ago
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