](https://developer.wordpress.org/reference/classes/wp_rest_posts_controller/prepare_item_for_database/) ` wp-includes/rest-api/endpoints/class-wp-rest-posts-controller.php ` |  Prepares a single post for create or update.   
[ WP_REST_Posts_Controller::delete_item() ](https://developer.wordpress.org/reference/classes/wp_rest_posts_controller/delete_item/) ` wp-includes/rest-api/endpoints/class-wp-rest-posts-controller.php ` |  Deletes a single post.   
[ WP_REST_Posts_Controller::get_items() ](https://developer.wordpress.org/reference/classes/wp_rest_posts_controller/get_items/) ` wp-includes/rest-api/endpoints/class-wp-rest-posts-controller.php ` |  Retrieves a collection of posts.   
[ WP_REST_Taxonomies_Controller::prepare_item_for_response() ](https://developer.wordpress.org/reference/classes/wp_rest_taxonomies_controller/prepare_item_for_response/) ` wp-includes/rest-api/endpoints/class-wp-rest-taxonomies-controller.php ` |  Prepares a taxonomy object for serialization.   
[ WP_REST_Post_Types_Controller::prepare_item_for_response() ](https://developer.wordpress.org/reference/classes/wp_rest_post_types_controller/prepare_item_for_response/) ` wp-includes/rest-api/endpoints/class-wp-rest-post-types-controller.php ` |  Prepares a post type object for serialization.   
[ WP_REST_Comments_Controller::get_collection_params() ](https://developer.wordpress.org/reference/classes/wp_rest_comments_controller/get_collection_params/) ` wp-includes/rest-api/endpoints/class-wp-rest-comments-controller.php ` |  Retrieves the query params for collections.   
[ WP_REST_Comments_Controller::prepare_item_for_response() ](https://developer.wordpress.org/reference/classes/wp_rest_comments_controller/prepare_item_for_response/) ` wp-includes/rest-api/endpoints/class-wp-rest-comments-controller.php ` |  Prepares a single comment output for response.   
[ WP_REST_Comments_Controller::prepare_item_for_database() ](https://developer.wordpress.org/reference/classes/wp_rest_comments_controller/prepare_item_for_database/) ` wp-includes/rest-api/endpoints/class-wp-rest-comments-controller.php ` |  Prepares a single comment to be inserted into the database.   
[ WP_REST_Comments_Controller::delete_item() ](https://developer.wordpress.org/reference/classes/wp_rest_comments_controller/delete_item/) ` wp-includes/rest-api/endpoints/class-wp-rest-comments-controller.php ` |  Deletes a comment.   
[ WP_REST_Comments_Controller::create_item_permissions_check() ](https://developer.wordpress.org/reference/classes/wp_rest_comments_controller/create_item_permissions_check/) ` wp-includes/rest-api/endpoints/class-wp-rest-comments-controller.php ` |  Checks if a given request has access to create a comment.   
[ WP_REST_Comments_Controller::create_item() ](https://developer.wordpress.org/reference/classes/wp_rest_comments_controller/create_item/) ` wp-includes/rest-api/endpoints/class-wp-rest-comments-controller.php ` |  Creates a comment.   
[ WP_REST_Comments_Controller::get_items() ](https://developer.wordpress.org/reference/classes/wp_rest_comments_controller/get_items/) ` wp-includes/rest-api/endpoints/class-wp-rest-comments-controller.php ` |  Retrieves a list of comment items.   
[ WP_Taxonomy::set_props() ](https://developer.wordpress.org/reference/classes/wp_taxonomy/set_props/) ` wp-includes/class-wp-taxonomy.php ` |  Sets taxonomy properties.   
[ sanitize_textarea_field() ](https://developer.wordpress.org/reference/functions/sanitize_textarea_field/) ` wp-includes/formatting.php ` |  Sanitizes a multiline string from user input or from the database.   
[ wp_check_comment_flood() ](https://developer.wordpress.org/reference/functions/wp_check_comment_flood/) ` wp-includes/comment.php ` |  Checks whether comment flooding is occurring.   
[ get_parent_theme_file_path() ](https://developer.wordpress.org/reference/functions/get_parent_theme_file_path/) ` wp-includes/link-template.php ` |  Retrieves the path of a file in the parent theme.   
[ get_parent_the