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Which key is meta?
The meta key is a key on some keyboards, normally located next to the spacebar, that performs special functions when combined with another key. It originated on keyboards for Lisp computers in the 1960s, and its use continued on Sun computers where the key was marked with a diamond shape.
What is right meta key?
The the meta key is key between the Ctrl and Alt keys on your keyboard. It may sometimes be called the windows key, logo key, system key, or even the Ubuntu key. If you have an Apple keyboard, there will not be a meta key on your keyboard. The Command (Cmd) key can be used instead.
How to set Meta key for user in WordPress?
If you were to install it as a plugin, and then put the shortcode [wpshout_foundme] on any post on your site, then whenever a logged-in user visited that post, that user’s value for the user meta key wpshout_found_this_post would be set to true. (The user would also see a paragraph that reads “You found this post!”)
What is the definition of meta in WordPress?
WordPress user meta is “custom fields for your users.” User meta has existed since WordPress 3.0, and it occupies an entire table of the WordPress database: wp_usermeta. So it’s a well-established piece of WordPress’s architecture. Now, what is it? Here’s the simplest definition: User meta is “custom fields for your users.”
Which is the meta query class in WP?
WP_Meta_Query is a class defined in wp-includes/meta.php that generates the necessary SQL for meta-related queries. It was introduced in Version 3.2.0 and greatly improved the possibility to query posts by custom fields.
When to return a meta field in WordPress?
By default, returns data for all keys. (bool) (Optional) Whether to return a single value. This parameter has no effect if $key is not specified. (mixed) An array if $single is false. The value of the meta field if $single is true.