Category: WordPress Plugin Development

Upgrade schema safely across plugin versions with version checks.

Register custom post types for content that is not a normal post/page.

Group CPTs with custom taxonomies like genres, departments, or topics.

Attach extra data to posts using post meta / custom fields.

Add custom editing UI to the post editor with meta boxes.

Query the database safely with the global $wpdb object.

Create custom tables with dbDelta on plugin activation when CPT/meta is not enough.

Insert, read, update, and delete rows in custom tables using $wpdb helpers.

Store plugin configuration with get_option, update_option, and delete_option.

Build custom admin forms with nonces, capability checks, and redirects.