Regular Expressions 101

Community Patterns

Community Library Entry

0

Regular Expression
PCRE (PHP <7.3)

/
(?(DEFINE)(?<label>([[:alpha:]]([[:alnum:]-]{0,61}[[:alnum:]])?)|\*))(?=^.{1,255}$)(?:^(?P<name>(?P>label))\.(?P<zone>(?:(?P>label)\.?)*)$)
/
gm

Description

no description available

Submitted by anonymous - 5 years ago