Get user IDs by meta-data

[filosofo]

There should be some way to retrieve user IDs from user meta-data, without having to query the database directly.

Patch adds function get_users_by_metadata:

array get_users_by_metadata ( string $meta_key [, string $meta_value ] )

So, for example, you can do things like:

$my_user_ids = get_users_by_metadata( 'openid', 'http://filosofo.wordpress.com');

or perhaps

$campaign_referrals = get_users_by_metadata( 'signup_from_ad_campaign' );

[scribu]

I think we should go for a more general get_users() function, similar to get_posts().

[scribu]

Or a more general get_objects_by_meta() that works on any meta table, for that matter.

[filosofo]

I like either of those ideas. Will you create a patch?

[scribu]

I'll take a shot at get_users().

[filosofo]

OK, great. Looking forward to it.

[scribu]

Sneak preview: ​http://gsoc.trac.wordpress.org/browser/2010/scribu/wp-includes/user.php#L328

[scribu]

Opened #14123.