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What is the meaning of the field WP _ capabilities in table?
In addition to @Krysiek’s answer, you should know that the data stored in the meta tables, including user metadata, is often serialized. If you’d like to know what the data actually represents, you can use the PHP function unserialize to determine it’s value.
How are roles and capabilities work in WordPress?
User management on WordPress is based on roles and capabilities. A role is an entity made of a unique name and a set of capabilities. Each capability is used to define if the role has access to a particular feature of the platform. Let’s take a closer look at how WordPress Roles and Capabilities work.
How are capabilities hard coded in WordPress core?
Several default capabilities are hard-coded in the WordPress core. For instance, when loading the plugin screen, it will check if the current user can manage plugins, by running the following code: Roles are never hard-coded; a role is only a capabilities wrapper, it only exists in the database.
How to check if a user has a capability?
We can check whether a particular user has been assigned a capability, like so: https://gist.github.com/jgalea/5983390To help you get the ID of the user you want to perform the check against, you can use the Reveal IDs plugin. The check can also be performed on the current user:
What is the usermeta table in WP 4.7?
As of WP 4.7 the table contains: ID, user_login, user_pass, user_nicename, user_email, user_url, user_registered, user_activation_key, user_status and display_name. Because of this, to store additional data, the usermeta table was introduced, which can store any arbitrary amount of data about a user.
What does the user table in WordPress contain?
WordPress’ users table was designed to contain only the essential information about the user. Note: As of WP 4.7 the table contains: ID, user_login, user_pass, user_nicename, user_email, user_url, user_registered, user_activation_key, user_status and display_name.
What kind of data is in the WP _ posts table?
wp_posts table stores all content related data of a WordPress website. All posts, pages, their revisions are available in the wp_posts table. It might be confusing but WordPress stores much more into that table. This table also contains navigation menu items, media files and attachments like images and content data that are used by plugins.