Regular Expressions 101

Community Patterns

detect if input is valid domain name

0

Regular Expression
PCRE (PHP <7.3)

/
^(?:(?!\-)(?:(?!\:\.)[a-zA-Z0-9\-])*[^-]\.)*(?:(?!\-)(?:[a-zA-Z0-9\-]*(?<=[a-zA-Z])[0-9]*)+(?<!\-))$
/

Description

no description available

Submitted by nnnn20430 - 8 years ago