[wp-hackers] Throwing An Error And Not Saving When Metabox Input Is Wrong

Ken (WraithKenny) ken.adcstudio at gmail.com
Tue Jan 17 18:16:56 UTC 2012

there are a couple of viable answers here

A third option is to append a new message variable to the url (say
"&metabox_message=3"), then on the admin_notices hook, use a lookup
like wp does (its an array of messages on the "3" would be the index)
or however you like.

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