<?php /** * Post API: WP_Post class * * @package WordPress * @subpackage Post * @since 4.4.0 */ /** * Core class used to implement the WP_Post object. * * @since 3.5.0 * * @property string $page_template * * @property-read int[] $ancestors * @property-read int[] $post_category * @property-read string[] $tags_input */ #[AllowDynamicProperties] final class WP_Post { /** * Post ID. * * @since 3.5.0 * @var int */ public $ID; /** * ID of post author. * * A numeric string, for compatibility reasons. * * @since 3.5.0 * @var string */ public $post_author = '0'; /** * The post's local publication time. * * @since 3.5.0 * @var string */ public $post_date = '0000-00-00 00:00:00'; /** * The post's GMT publication time. * * @since 3.5.0 * @var string */ public $post_date_gmt = '0000-00-00 00:00:00'; /** * The post's content. * * @since 3.5.0 * @var string */ public $post_content = ''; /** * The post's title. * * @since 3.5.0 * @var string */ public $post_title = ''; /** * The post's excerpt. * * @since 3.5.0 * @var string */ public $post_excerpt = ''; /** * The post's status. * * @since 3.5.0 * @var string */ public $post_status = 'publish'; /** * Whether comments are allowed. * * @since 3.5.0 * @var string */ public $comment_status = 'open'; /** * Whether pings are allowed. * * @since 3.5.0 * @var string */ public $ping_status = 'open'; /** * The post's password in plain text. * * @since 3.5.0 * @var string */ public $post_password = ''; /** * The post's slug. * * @since 3.5.0 * @var string */ public $post_name = ''; /** * URLs queued to be pinged. * * @since 3.5.0 * @var string */ public $to_ping = ''; /** * URLs that have been pinged. * * @since 3.5.0 * @var string */ public $pinged = ''; /** * The post's local modified time. * * @since 3.5.0 * @var string */ public $post_modified = '0000-00-00 00:00:00'; /** * The post's GMT modified time. * * @since 3.5.0 * @var string */ public $post_modified_gmt = '0000-00-00 00:00:00'; /** * A utility DB field for post content. * * @since 3.5.0 * @var string */ public $post_content_filtered = ''; /** * ID of a post's parent post. * * @since 3.5.0 * @var int */ public $post_parent = 0; /** * The unique identifier for a post, not necessarily a URL, used as the feed GUID. * * @since 3.5.0 * @var string */ public $guid = ''; /** * A field used for ordering posts. * * @since 3.5.0 * @var int */ public $menu_order = 0; /** * The post's type, like post or page. * * @since 3.5.0 * @var string */ public $post_type = 'post'; /** * An attachment's mime type. * * @since 3.5.0 * @var string */ public $post_mime_type = ''; /** * Cached comment count. * * A numeric string, for compatibility reasons. * * @since 3.5.0 * @var string */ public $comment_count = '0'; /** * Stores the post object's sanitization level. * * Does not correspond to a DB field. * * @since 3.5.0 * @var string */ public $filter; /** * Retrieve WP_Post instance. * * @since 3.5.0 * * @global wpdb $wpdb WordPress database abstraction object. * * @param int $post_id Post ID. * @return WP_Post|false Post object, false otherwise. */ public static function get_instance( $post_id ) { global $wpdb; $post_id = (int) $post_id; if ( ! $post_id ) { return false; } $_post = wp_cache_get( $post_id, 'posts' ); if ( ! $_post ) { $_post = $wpdb->get_row( $wpdb->prepare( "SELECT * FROM $wpdb->posts WHERE ID = %d LIMIT 1", $post_id ) ); if ( ! $_post ) { return false; } $_post = sanitize_post( $_post, 'raw' ); wp_cache_add( $_post->ID, $_post, 'posts' ); } elseif ( empty( $_post->filter ) || 'raw' !== $_post->filter ) { $_post = sanitize_post( $_post, 'raw' ); } return new WP_Post( $_post ); } /** * Constructor. * * @since 3.5.0 * * @param WP_Post|object $post Post object. */ public function __construct( $post ) { foreach ( get_object_vars( $post ) as $key => $value ) { $this->$key = $value; } } /** * Isset-er. * * @since 3.5.0 * * @param string $key Property to check if set. * @return bool */ public function __isset( $key ) { if ( 'ancestors' === $key ) { return true; } if ( 'page_template' === $key ) { return true; } if ( 'post_category' === $key ) { return true; } if ( 'tags_input' === $key ) { return true; } return metadata_exists( 'post', $this->ID, $key ); } /** * Getter. * * @since 3.5.0 * * @param string $key Key to get. * @return mixed */ public function __get( $key ) { if ( 'page_template' === $key && $this->__isset( $key ) ) { return get_post_meta( $this->ID, '_wp_page_template', true ); } if ( 'post_category' === $key ) { if ( is_object_in_taxonomy( $this->post_type, 'category' ) ) { $terms = get_the_terms( $this, 'category' ); } if ( empty( $terms ) ) { return array(); } return wp_list_pluck( $terms, 'term_id' ); } if ( 'tags_input' === $key ) { if ( is_object_in_taxonomy( $this->post_type, 'post_tag' ) ) { $terms = get_the_terms( $this, 'post_tag' ); } if ( empty( $terms ) ) { return array(); } return wp_list_pluck( $terms, 'name' ); } // Rest of the values need filtering. if ( 'ancestors' === $key ) { $value = get_post_ancestors( $this ); } else { $value = get_post_meta( $this->ID, $key, true ); } if ( $this->filter ) { $value = sanitize_post_field( $key, $value, $this->ID, $this->filter ); } return $value; } /** * {@Missing Summary} * * @since 3.5.0 * * @param string $filter Filter. * @return WP_Post */ public function filter( $filter ) { if ( $this->filter === $filter ) { return $this; } if ( 'raw' === $filter ) { return self::get_instance( $this->ID ); } return sanitize_post( $this, $filter ); } /** * Convert object to array. * * @since 3.5.0 * * @return array Object as array. */ public function to_array() { $post = get_object_vars( $this ); foreach ( array( 'ancestors', 'page_template', 'post_category', 'tags_input' ) as $key ) { if ( $this->__isset( $key ) ) { $post[ $key ] = $this->__get( $key ); } } return $post; } }

ميديا

“ألعاب الواقع الافتراضي: رحلة إلى عوالم تفاعلية غامرة”

يونيو 12, 2025

902 أقل من دقيقة

في هذا التقرير المصور، نأخذك في جولة بصرية داخل عالم ألعاب الواقع الافتراضي (VR)، حيث تندمج التكنولوجيا مع الترفيه لخلق تجارب لا مثيل لها. من خلال نظارات الواقع الافتراضي المتطورة، يمكن للاعبين التفاعل مع بيئات ثلاثية الأبعاد، مما يتيح لهم الانغماس الكامل في الألعاب. سنستعرض أبرز الألعاب المتاحة، مثل “Beat Saber” و”Half-Life: Alyx”، التي تقدم تجارب تفاعلية مبتكرة. كما نسلط الضوء على التحديات التي تواجه هذه التقنية، مثل التكلفة المرتفعة ومشاكل الراحة أثناء الاستخدام الطويل. انضم إلينا لاكتشاف كيف يُعيد الواقع الافتراضي تعريف مفهوم اللعب ويشكل مستقبل صناعة الألعاب.