Regular Expressions 101

Library entries

FQDN Fully Qualified Domain Name

Vote

1

Regular Expression
pcre

/
^((([a-z0-9][a-z0-9\-]*[a-z0-9])|[a-z0-9]+)\.)*([a-z]+|xn\-\-[a-z0-9]+)\.?$
/

Description

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Submitted by Rafael Justo and Mauro Trajber - 6 years ago