Regular Expressions 101

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Community Patterns

52

Disorted Email Addresses

PCRE (PHP <7.3)
Matches distorted email addresses and converts them back to real ones.
Submitted by dislick - 12 years ago
40

URL regexp

PCRE (PHP <7.3)
A quite neat regular expression for URLs, e-mails..., I found on Matthew O'Riordan's blog.
Submitted by Matthew O'Riordan - 12 years ago
1...900901902

Community Library Entry

0

Regular Expression
PCRE (PHP <7.3)

/
^(?<srcNet>\d{1,3}\.\d{1,3}\.\d{1,3}|[0-9a-f]{1,4}:[0-9a-f]{1,4}:[0-9a-f]{1,4}:[0-9a-f]{1,4})[.:]
/
gim
Open regex in editor

Description

This extracts the first three octets of an IPv4 address, or the first half of an IPv6 address. This may be suitable for classifying addresses by address groups.

Submitted by anonymous - 7 years ago