Multisite new site domain name: inconsistency with hyphens ms-functions.php vs site-new.php
|Reported by:||lkraav||Owned by:|
if ( preg_match( '/[^a-z0-9]+/', $blogname ) )
if ( preg_match( '|^([a-zA-Z0-9-])+$|', $blog['domain'] ) )
Yes, I'd really like to have hyphens in my subsite domain names. Blaming all the way back to multisite import doesn't reveal any particular reasoning why hyphens are historically disallowed. Since hyphens are a normal part of the DNS system, I see no reason why they should be banned.
I would suggest matching also for "-" in ms-functions.php.