wp-signup.php blog_id

Why are you trying to grab that information?

I ended up writing https://www.ads-software.com/plugins/join-my-multisite/ to handle something similar to that, which lets people sign up per-site.

Like I said, individual validations that get stored in each site options.

Mika, are users currently assigned to all sites? How is the restriction being done? Because signups table shows correct meta after activation.

Like I said, individual validations that get stored in each site options.

Yeah but that doesn’t make sense ??

You don’t store user information in site options, see. That goes into wp_usermeta.

So here’s how users are added to WordPress Multisite.

1) User registers to the network and someone adds the user to a site.

2) Someone invites a user to a specific site on the network.

Trying to implement registration validations that are stored in each blog options table. Without correct blog_id these validations fail.

What are you trying to validate. Given that users are not added to specific sites unless you use a plugin, it would help if you could explain that.

They aren’t really user validations. But I see the point since it’s done during registration. Example honeypot, recaptcha keys, etc. They are individual to each site.

Note… The “guru” is answering with questions ??
1) User registers to the network
Hold on. Link activation adds the user to the correct blog…right?
“and someone adds the user to a site”
Can’t be that pre-historic ?? can it ??

Example honeypot, recaptcha keys, etc. They are individual to each site.

AHHH! No. Or at least they shouldn’t be. Those should be network settings.

A honeypot would be global for all registrations on all sites ?? Ditto recaptch.

Link activation adds the user to the correct blog…right?

Nope. If a user registers themselves to the network, they are not added to any site.

I see. Thanks for the clarification.

Will take a look at your join-my-multisite.