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<?php
/**
 * Query API: WP_Query class
 *
 * @package WordPress
 * @subpackage Query
 * @since 4.7.0
 */

/**
 * The WordPress Query class.
 *
 * @link https://developer.wordpress.org/reference/classes/wp_query/
 *
 * @since 1.5.0
 * @since 4.5.0 Removed the `$comments_popup` property.
 */
#[AllowDynamicProperties]
class WP_Query {

/**
	 * Query vars set by the user.
	 *
	 * @since 1.5.0
	 * @var array
	 */
	public $query;

/**
	 * Query vars, after parsing.
	 *
	 * @since 1.5.0
	 * @var array
	 */
	public $query_vars = array();

/**
	 * Taxonomy query, as passed to get_tax_sql().
	 *
	 * @since 3.1.0
	 * @var WP_Tax_Query|null A taxonomy query instance.
	 */
	public $tax_query;

/**
	 * Metadata query container.
	 *
	 * @since 3.2.0
	 * @var WP_Meta_Query A meta query instance.
	 */
	public $meta_query = false;

/**
	 * Date query container.
	 *
	 * @since 3.7.0
	 * @var WP_Date_Query A date query instance.
	 */
	public $date_query = false;

/**
	 * Holds the data for a single object that is queried.
	 *
	 * Holds the contents of a post, page, category, attachment.
	 *
	 * @since 1.5.0
	 * @var WP_Term|WP_Post_Type|WP_Post|WP_User|null
	 */
	public $queried_object;

/**
	 * The ID of the queried object.
	 *
	 * @since 1.5.0
	 * @var int
	 */
	public $queried_object_id;

/**
	 * SQL for the database query.
	 *
	 * @since 2.0.1
	 * @var string
	 */
	public $request;

/**
	 * Array of post objects or post IDs.
	 *
	 * @since 1.5.0
	 * @var WP_Post[]|int[]
	 */
	public $posts;

/**
	 * The number of posts for the current query.
	 *
	 * @since 1.5.0
	 * @var int
	 */
	public $post_count = 0;

/**
	 * Index of the current item in the loop.
	 *
	 * @since 1.5.0
	 * @var int
	 */
	public $current_post = -1;

/**
	 * Whether the caller is before the loop.
	 *
	 * @since 6.3.0
	 * @var bool
	 */
	public $before_loop = true;

/**
	 * Whether the loop has started and the caller is in the loop.
	 *
	 * @since 2.0.0
	 * @var bool
	 */
	public $in_the_loop = false;

/**
	 * The current post.
	 *
	 * This property does not get populated when the `fields` argument is set to
	 * `ids` or `id=>parent`.
	 *
	 * @since 1.5.0
	 * @var WP_Post|null
	 */
	public $post;

/**
	 * The list of comments for current post.
	 *
	 * @since 2.2.0
	 * @var WP_Comment[]
	 */
	public $comments;

/**
	 * The number of comments for the posts.
	 *
	 * @since 2.2.0
	 * @var int
	 */
	public $comment_count = 0;

/**
	 * The index of the comment in the comment loop.
	 *
	 * @since 2.2.0
	 * @var int
	 */
	public $current_comment = -1;

/**
	 * Current comment object.
	 *
	 * @since 2.2.0
	 * @var WP_Comment
	 */
	public $comment;

/**
	 * The number of found posts for the current query.
	 *
	 * If limit clause was not used, equals $post_count.
	 *
	 * @since 2.1.0
	 * @var int
	 */
	public $found_posts = 0;

/**
	 * The number of pages.
	 *
	 * @since 2.1.0
	 * @var int
	 */
	public $max_num_pages = 0;

/**
	 * The number of comment pages.
	 *
	 * @since 2.7.0
	 * @var int
	 */
	public $max_num_comment_pages = 0;

/**
	 * Signifies whether the current query is for a single post.
	 *
	 * @since 1.5.0
	 * @var bool
	 */
	public $is_single = false;

/**
	 * Signifies whether the current query is for a preview.
	 *
	 * @since 2.0.0
	 * @var bool
	 */
	public $is_preview = false;

/**
	 * Signifies whether the current query is for a page.
	 *
	 * @since 1.5.0
	 * @var bool
	 */
	public $is_page = false;

/**
	 * Signifies whether the current query is for an archive.
	 *
	 * @since 1.5.0
	 * @var bool
	 */
	public $is_archive = false;

/**
	 * Signifies whether the current query is for a date archive.
	 *
	 * @since 1.5.0
	 * @var bool
	 */
	public $is_date = false;

/**
	 * Signifies whether the current query is for a year archive.
	 *
	 * @since 1.5.0
	 * @var bool
	 */
	public $is_year = false;

/**
	 * Signifies whether the current query is for a month archive.
	 *
	 * @since 1.5.0
	 * @var bool
	 */
	public $is_month = false;

/**
	 * Signifies whether the current query is for a day archive.
	 *
	 * @since 1.5.0
	 * @var bool
	 */
	public $is_day = false;

/**
	 * Signifies whether the current query is for a specific time.
	 *
	 * @since 1.5.0
	 * @var bool
	 */
	public $is_time = false;

/**
	 * Signifies whether the current query is for an author archive.
	 *
	 * @since 1.5.0
	 * @var bool
	 */
	public $is_author = false;

/**
	 * Signifies whether the current query is for a category archive.
	 *
	 * @since 1.5.0
	 * @var bool
	 */
	public $is_category = false;

/**
	 * Signifies whether the current query is for a tag archive.
	 *
	 * @since 2.3.0
	 * @var bool
	 */
	public $is_tag = false;

/**
	 * Signifies whether the current query is for a taxonomy archive.
	 *
	 * @since 2.5.0
	 * @var bool
	 */
	public $is_tax = false;

/**
	 * Signifies whether the current query is for a search.
	 *
	 * @since 1.5.0
	 * @var bool
	 */
	public $is_search = false;

/**
	 * Signifies whether the current query is for a feed.
	 *
	 * @since 1.5.0
	 * @var bool
	 */
	public $is_feed = false;

/**
	 * Signifies whether the current query is for a comment feed.
	 *
	 * @since 2.2.0
	 * @var bool
	 */
	public $is_comment_feed = false;

/**
	 * Signifies whether the current query is for trackback endpoint call.
	 *
	 * @since 1.5.0
	 * @var bool
	 */
	public $is_trackback = false;

/**
	 * Signifies whether the current query is for the site homepage.
	 *
	 * @since 1.5.0
	 * @var bool
	 */
	public $is_home = false;

/**
	 * Signifies whether the current query is for the Privacy Policy page.
	 *
	 * @since 5.2.0
	 * @var bool
	 */
	public $is_privacy_policy = false;

/**
	 * Signifies whether the current query couldn't find anything.
	 *
	 * @since 1.5.0
	 * @var bool
	 */
	public $is_404 = false;

/**
	 * Signifies whether the current query is for an embed.
	 *
	 * @since 4.4.0
	 * @var bool
	 */
	public $is_embed = false;

/**
	 * Signifies whether the current query is for a paged result and not for the first page.
	 *
	 * @since 1.5.0
	 * @var bool
	 */
	public $is_paged = false;

/**
	 * Signifies whether the current query is for an administrative interface page.
	 *
	 * @since 1.5.0
	 * @var bool
	 */
	public $is_admin = false;

/**
	 * Signifies whether the current query is for an attachment page.
	 *
	 * @since 2.0.0
	 * @var bool
	 */
	public $is_attachment = false;

/**
	 * Signifies whether the current query is for an existing single post of any post type
	 * (post, attachment, page, custom post types).
	 *
	 * @since 2.1.0
	 * @var bool
	 */
	public $is_singular = false;

/**
	 * Signifies whether the current query is for the robots.txt file.
	 *
	 * @since 2.1.0
	 * @var bool
	 */
	public $is_robots = false;

/**
	 * Signifies whether the current query is for the favicon.ico file.
	 *
	 * @since 5.4.0
	 * @var bool
	 */
	public $is_favicon = false;

/**
	 * Signifies whether the current query is for the page_for_posts page.
	 *
	 * Basically, the homepage if the option isn't set for the static homepage.
	 *
	 * @since 2.1.0
	 * @var bool
	 */
	public $is_posts_page = false;

/**
	 * Signifies whether the current query is for a post type archive.
	 *
	 * @since 3.1.0
	 * @var bool
	 */
	public $is_post_type_archive = false;

/**
	 * Stores the ->query_vars state like md5(serialize( $this->query_vars ) ) so we know
	 * whether we have to re-parse because something has changed
	 *
	 * @since 3.1.0
	 * @var bool|string
	 */
	private $query_vars_hash = false;

/**
	 * Whether query vars have changed since the initial parse_query() call. Used to catch modifications to query vars made
	 * via pre_get_posts hooks.
	 *
	 * @since 3.1.1
	 */
	private $query_vars_changed = true;

/**
	 * Set if post thumbnails are cached
	 *
	 * @since 3.2.0
	 * @var bool
	 */
	public $thumbnails_cached = false;

/**
	 * Controls whether an attachment query should include filenames or not.
	 *
	 * @since 6.0.3
	 * @var bool
	 */
	protected $allow_query_attachment_by_filename = false;

/**
	 * Cached list of search stopwords.
	 *
	 * @since 3.7.0
	 * @var array
	 */
	private $stopwords;

private $compat_fields = array( 'query_vars_hash', 'query_vars_changed' );

private $compat_methods = array( 'init_query_flags', 'parse_tax_query' );

/**
	 * Resets query flags to false.
	 *
	 * The query flags are what page info WordPress was able to figure out.
	 *
	 * @since 2.0.0
	 */
	private function init_query_flags() {
		$this->is_single            = false;
		$this->is_preview           = false;
		$this->is_page              = false;
		$this->is_archive           = false;
		$this->is_date              = false;
		$this->is_year              = false;
		$this->is_month             = false;
		$this->is_day               = false;
		$this->is_time              = false;
		$this->is_author            = false;
		$this->is_category          = false;
		$this->is_tag               = false;
		$this->is_tax               = false;
		$this->is_search            = false;
		$this->is_feed              = false;
		$this->is_comment_feed      = false;
		$this->is_trackback         = false;
		$this->is_home              = false;
		$this->is_privacy_policy    = false;
		$this->is_404               = false;
		$this->is_paged             = false;
		$this->is_admin             = false;
		$this->is_attachment        = false;
		$this->is_singular          = false;
		$this->is_robots            = false;
		$this->is_favicon           = false;
		$this->is_posts_page        = false;
		$this->is_post_type_archive = false;
	}

/**
	 * Initiates object properties and sets default values.
	 *
	 * @since 1.5.0
	 */
	public function init() {
		unset( $this->posts );
		unset( $this->query );
		$this->query_vars = array();
		unset( $this->queried_object );
		unset( $this->queried_object_id );
		$this->post_count   = 0;
		$this->current_post = -1;
		$this->in_the_loop  = false;
		$this->before_loop  = true;
		unset( $this->request );
		unset( $this->post );
		unset( $this->comments );
		unset( $this->comment );
		$this->comment_count         = 0;
		$this->current_comment       = -1;
		$this->found_posts           = 0;
		$this->max_num_pages         = 0;
		$this->max_num_comment_pages = 0;

$this->init_query_flags();
	}

/**
	 * Reparses the query vars.
	 *
	 * @since 1.5.0
	 */
	public function parse_query_vars() {
		$this->parse_query();
	}

/**
	 * Fills in the query variables, which do not exist within the parameter.
	 *
	 * @since 2.1.0
	 * @since 4.5.0 Removed the `comments_popup` public query variable.
	 *
	 * @param array $query_vars Defined query variables.
	 * @return array Complete query variables with undefined ones filled in empty.
	 */
	public function fill_query_vars( $query_vars ) {
		$keys = array(
			'error',
			'm',
			'p',
			'post_parent',
			'subpost',
			'subpost_id',
			'attachment',
			'attachment_id',
			'name',
			'pagename',
			'page_id',
			'second',
			'minute',
			'hour',
			'day',
			'monthnum',
			'year',
			'w',
			'category_name',
			'tag',
			'cat',
			'tag_id',
			'author',
			'author_name',
			'feed',
			'tb',
			'paged',
			'meta_key',
			'meta_value',
			'preview',
			's',
			'sentence',
			'title',
			'fields',
			'menu_order',
			'embed',
		);

foreach ( $keys as $key ) {
			if ( ! isset( $query_vars[ $key ] ) ) {
				$query_vars[ $key ] = '';
			}
		}

$array_keys = array(
			'category__in',
			'category__not_in',
			'category__and',
			'post__in',
			'post__not_in',
			'post_name__in',
			'tag__in',
			'tag__not_in',
			'tag__and',
			'tag_slug__in',
			'tag_slug__and',
			'post_parent__in',
			'post_parent__not_in',
			'author__in',
			'author__not_in',
			'search_columns',
		);

foreach ( $array_keys as $key ) {
			if ( ! isset( $query_vars[ $key ] ) ) {
				$query_vars[ $key ] = array();
			}
		}

return $query_vars;
	}

/**
	 * Parses a query string and sets query type booleans.
	 *
	 * @since 1.5.0
	 * @since 4.2.0 Introduced the ability to order by specific clauses of a `$meta_query`, by passing the clause's
	 *              array key to `$orderby`.
	 * @since 4.4.0 Introduced `$post_name__in` and `$title` parameters. `$s` was updated to support excluded
	 *              search terms, by prepending a hyphen.
	 * @since 4.5.0 Removed the `$comments_popup` para