Regular Expressions 101

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Community Patterns

-2

email

PCRE (PHP <7.3)
matches normal email addresses like example@gmail.com but also addresses with ip addresses like example@192.168.0.34 (not ipv6)
Submitted by Adrian Kühni - 10 years ago
-1

IP address regex of IPV4

PCRE (PHP <7.3)
The given regex matches the IPV4 address of given ip address string.
Submitted by Ayush - 10 years ago
0

https://regex101.com/r/lS4dV7/1

Python
ipv4 address matching
Submitted by Unknown - 10 years ago
0

IPv6 Regex Match Removal

Python
Works for all IPv6 addresses in removing them using regex
Submitted by vks - 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
-2

IPv4

Python
allows for all legal IPv4 addresses
Submitted by anonymous - 10 years ago
35

IP Address validator

ECMAScript (JavaScript)
Validates IPv4 IP Address
Submitted by krzysp - 10 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
1

IPv4 validation using recursion

PCRE (PHP <7.3)
Validate IPv4 addresses using PCRE's recursion patterns.
Submitted by Captain Haddock - 10 years ago
0

Match IP (ipv4) addresses: [0.0.0.0]-[255.255.255.255]

PCRE (PHP <7.3)
Matches ranges from 0-255 for all four octets. Extra leading or trailing '.' invalidate the match, as do values > 255.
Submitted by OnlineCop - 10 years ago
0

IPv4 private network address

PCRE (PHP <7.3)
Check if the given string is a private address
Submitted by Loïc Rameau - 11 years ago
0

Dotted-decimal IPv4 address

PCRE (PHP <7.3)
Validates an IPv4 address for use as a URI host as defined in RFC-3986.
Submitted by ezzatron - 12 years ago
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