name : class-wp-comment.php <?php /** * Comment API: WP_Comment class * * @package WordPress * @subpackage Comments * @since 4.4.0 */ /** * Core class used to organize comments as instantiated objects with defined members. * * @since 4.4.0 */ #[AllowDynamicProperties] final class WP_Comment { /** * Comment ID. * * A numeric string, for compatibility reasons. * * @since 4.4.0 * @var string */ public $comment_ID; /** * ID of the post the comment is associated with. * * A numeric string, for compatibility reasons. * * @since 4.4.0 * @var string */ public $comment_post_ID = 0; /** * Comment author name. * * @since 4.4.0 * @var string */ public $comment_author = ''; /** * Comment author email address. * * @since 4.4.0 * @var string */ public $comment_author_email = ''; /** * Comment author URL. * * @since 4.4.0 * @var string */ public $comment_author_url = ''; /** * Comment author IP address (IPv4 format). * * @since 4.4.0 * @var string */ public $comment_author_IP = ''; /** * Comment date in YYYY-MM-DD HH:MM:SS format. * * @since 4.4.0 * @var string */ public $comment_date = '0000-00-00 00:00:00'; /** * Comment GMT date in YYYY-MM-DD HH::MM:SS format. * * @since 4.4.0 * @var string */ public $comment_date_gmt = '0000-00-00 00:00:00'; /** * Comment content. * * @since 4.4.0 * @var string */ public $comment_content; /** * Comment karma count. * * A numeric string, for compatibility reasons. * * @since 4.4.0 * @var string */ public $comment_karma = 0; /** * Comment approval status. * * @since 4.4.0 * @var string */ public $comment_approved = '1'; /** * Comment author HTTP user agent. * * @since 4.4.0 * @var string */ public $comment_agent = ''; /** * Comment type. * * @since 4.4.0 * @since 5.5.0 Default value changed to `comment`. * @var string */ public $comment_type = 'comment'; /** * Parent comment ID. * * A numeric string, for compatibility reasons. * * @since 4.4.0 * @var string */ public $comment_parent = 0; /** * Comment author ID. * * A numeric string, for compatibility reasons. * * @since 4.4.0 * @var string */ public $user_id = 0; /** * Comment children. * * @since 4.4.0 * @var array */ protected $children; /** * Whether children have been populated for this comment object. * * @since 4.4.0 * @var bool */ protected $populated_children = false; /** * Post fields. * * @since 4.4.0 * @var array */ protected $post_fields = array( 'post_author', 'post_date', 'post_date_gmt', 'post_content', 'post_title', 'post_excerpt', 'post_status', 'comment_status', 'ping_status', 'post_name', 'to_ping', 'pinged', 'post_modified', 'post_modified_gmt', 'post_content_filtered', 'post_parent', 'guid', 'menu_order', 'post_type', 'post_mime_type', 'comment_count' ); /** * Retrieves a WP_Comment instance. * * @since 4.4.0 * * @global wpdb $wpdb WordPress database abstraction object. * * @param int $id Comment ID. * @return WP_Comment|false Comment object, otherwise false. */ public static function get_instance( $id ) { global $wpdb; $comment_id = (int) $id; if ( ! $comment_id ) { return false; } $_comment = wp_cache_get( $comment_id, 'comment' ); if ( ! $_comment ) { $_comment = $wpdb->get_row( $wpdb->prepare( "SELECT * FROM $wpdb->comments WHERE comment_ID = %d LIMIT 1", $comment_id ) ); if ( ! $_comment ) { return false; } wp_cache_add( $_comment->comment_ID, $_comment, 'comment' ); } return new WP_Comment( $_comment ); } /** * Constructor. * * Populates properties with object vars. * * @since 4.4.0 * * @param WP_Comment $comment Comment object. */ public function __construct( $comment ) { foreach ( get_object_vars( $comment ) as $key => $value ) { $this->$key = $value; } } /** * Converts object to array. * * @since 4.4.0 * * @return array Object as array. */ public function to_array() { return get_object_vars( $this ); } /** * Gets the children of a comment. * * @since 4.4.0 * * @param array $args { * Array of arguments used to pass to get_comments() and determine format. * * @type string $format Return value format. 'tree' for a hierarchical tree, 'flat' for a flattened array. * Default 'tree'. * @type string $status Comment status to limit results by. Accepts 'hold' (`comment_status=0`), * 'approve' (`comment_status=1`), 'all', or a custom comment status. * Default 'all'. * @type string $hierarchical Whether to include comment descendants in the results. * 'threaded' returns a tree, with each comment's children * stored in a `children` property on the `WP_Comment` object. * 'flat' returns a flat array of found comments plus their children. * Pass `false` to leave out descendants. * The parameter is ignored (forced to `false`) when `$fields` is 'ids' or 'counts'. * Accepts 'threaded', 'flat', or false. Default: 'threaded'. * @type string|array $orderby Comment status or array of statuses. To use 'meta_value' * or 'meta_value_num', `$meta_key` must also be defined. * To sort by a specific `$meta_query` clause, use that * clause's array key. Accepts 'comment_agent', * 'comment_approved', 'comment_author', * 'comment_author_email', 'comment_author_IP', * 'comment_author_url', 'comment_content', 'comment_date', * 'comment_date_gmt', 'comment_ID', 'comment_karma', * 'comment_parent', 'comment_post_ID', 'comment_type', * 'user_id', 'comment__in', 'meta_value', 'meta_value_num', * the value of $meta_key, and the array keys of * `$meta_query`. Also accepts false, an empty array, or * 'none' to disable `ORDER BY` clause. * } * @return WP_Comment[] Array of `WP_Comment` objects. */ public function get_children( $args = array() ) { $defaults = array( 'format' => 'tree', 'status' => 'all', 'hierarchical' => 'threaded', 'orderby' => '', ); $_args = wp_parse_args( $args, $defaults ); $_args['parent'] = $this->comment_ID; if ( is_null( $this->children ) ) { if ( $this->populated_children ) { $this->children = array(); } else { $this->children = get_comments( $_args ); } } if ( 'flat' === $_args['format'] ) { $children = array(); foreach ( $this->children as $child ) { $child_args = $_args; $child_args['format'] = 'flat'; // get_children() resets this value automatically. unset( $child_args['parent'] ); $children = array_merge( $children, array( $child ), $child->get_children( $child_args ) ); } } else { $children = $this->children; } return $children; } /** * Adds a child to the comment. * * Used by `WP_Comment_Query` when bulk-filling descendants. * * @since 4.4.0 * * @param WP_Comment $child Child comment. */ public function add_child( WP_Comment $child ) { $this->children[ $child->comment_ID ] = $child; } /** * Gets a child comment by ID. * * @since 4.4.0 * * @param int $child_id ID of the child. * @return WP_Comment|false Returns the comment object if found, otherwise false. */ public function get_child( $child_id ) { if ( isset( $this->children[ $child_id ] ) ) { return $this->children[ $child_id ]; } return false; } /** * Sets the 'populated_children' flag. * * This flag is important for ensuring that calling `get_children()` on a childless comment will not trigger * unneeded database queries. * * @since 4.4.0 * * @param bool $set Whether the comment's children have already been populated. */ public function populated_children( $set ) { $this->populated_children = (bool) $set; } /** * Determines whether a non-public property is set. * * If `$name` matches a post field, the comment post will be loaded and the post's value checked. * * @since 4.4.0 * * @param string $name Property name. * @return bool */ public function __isset( $name ) { if ( in_array( $name, $this->post_fields, true ) && 0 !== (int) $this->comment_post_ID ) { $post = get_post( $this->comment_post_ID ); return property_exists( $post, $name ); } } /** * Magic getter. * * If `$name` matches a post field, the comment post will be loaded and the post's value returned. * * @since 4.4.0 * * @param string $name Property name. * @return mixed */ public function __get( $name ) { if ( in_array( $name, $this->post_fields, true ) ) { $post = get_post( $this->comment_post_ID ); return $post->$name; } } }