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/home/tahkoom/public_html/wp-includes/class-wp-site-query.php
<?php
/**
 * Site API: WP_Site_Query class
 *
 * @package WordPress
 * @subpackage Sites
 * @since 4.6.0
 */

/**
 * Core class used for querying sites.
 *
 * @since 4.6.0
 *
 * @see WP_Site_Query::__construct() for accepted arguments.
 */
#[AllowDynamicProperties]
class WP_Site_Query {

	/**
	 * SQL for database query.
	 *
	 * @since 4.6.0
	 * @var string
	 */
	public $request;

	/**
	 * SQL query clauses.
	 *
	 * @since 4.6.0
	 * @var array
	 */
	protected $sql_clauses = array(
		'select'  => '',
		'from'    => '',
		'where'   => array(),
		'groupby' => '',
		'orderby' => '',
		'limits'  => '',
	);

	/**
	 * Metadata query container.
	 *
	 * @since 5.1.0
	 * @var WP_Meta_Query
	 */
	public $meta_query = false;

	/**
	 * Metadata query clauses.
	 *
	 * @since 5.1.0
	 * @var array
	 */
	protected $meta_query_clauses;

	/**
	 * Date query container.
	 *
	 * @since 4.6.0
	 * @var WP_Date_Query A date query instance.
	 */
	public $date_query = false;

	/**
	 * Query vars set by the user.
	 *
	 * @since 4.6.0
	 * @var array
	 */
	public $query_vars;

	/**
	 * Default values for query vars.
	 *
	 * @since 4.6.0
	 * @var array
	 */
	public $query_var_defaults;

	/**
	 * List of sites located by the query.
	 *
	 * @since 4.6.0
	 * @var array
	 */
	public $sites;

	/**
	 * The amount of found sites for the current query.
	 *
	 * @since 4.6.0
	 * @var int
	 */
	public $found_sites = 0;

	/**
	 * The number of pages.
	 *
	 * @since 4.6.0
	 * @var int
	 */
	public $max_num_pages = 0;

	/**
	 * Sets up the site query, based on the query vars passed.
	 *
	 * @since 4.6.0
	 * @since 4.8.0 Introduced the 'lang_id', 'lang__in', and 'lang__not_in' parameters.
	 * @since 5.1.0 Introduced the 'update_site_meta_cache', 'meta_query', 'meta_key',
	 *              'meta_compare_key', 'meta_value', 'meta_type', and 'meta_compare' parameters.
	 * @since 5.3.0 Introduced the 'meta_type_key' parameter.
	 *
	 * @param string|array $query {
	 *     Optional. Array or query string of site query parameters. Default empty.
	 *
	 *     @type int[]           $site__in               Array of site IDs to include. Default empty.
	 *     @type int[]           $site__not_in           Array of site IDs to exclude. Default empty.
	 *     @type bool            $count                  Whether to return a site count (true) or array of site objects.
	 *                                                   Default false.
	 *     @type array           $date_query             Date query clauses to limit sites by. See WP_Date_Query.
	 *                                                   Default null.
	 *     @type string          $fields                 Site fields to return. Accepts 'ids' (returns an array of site IDs)
	 *                                                   or empty (returns an array of complete site objects). Default empty.
	 *     @type int             $ID                     A site ID to only return that site. Default empty.
	 *     @type int             $number                 Maximum number of sites to retrieve. Default 100.
	 *     @type int             $offset                 Number of sites to offset the query. Used to build LIMIT clause.
	 *                                                   Default 0.
	 *     @type bool            $no_found_rows          Whether to disable the `SQL_CALC_FOUND_ROWS` query. Default true.
	 *     @type string|array    $orderby                Site status or array of statuses. Accepts:
	 *                                                   - 'id'
	 *                                                   - 'domain'
	 *                                                   - 'path'
	 *                                                   - 'network_id'
	 *                                                   - 'last_updated'
	 *                                                   - 'registered'
	 *                                                   - 'domain_length'
	 *                                                   - 'path_length'
	 *                                                   - 'site__in'
	 *                                                   - 'network__in'
	 *                                                   - 'deleted'
	 *                                                   - 'mature'
	 *                                                   - 'spam'
	 *                                                   - 'archived'
	 *                                                   - 'public'
	 *                                                   - false, an empty array, or 'none' to disable `ORDER BY` clause.
	 *                                                   Default 'id'.
	 *     @type string          $order                  How to order retrieved sites. Accepts 'ASC', 'DESC'. Default 'ASC'.
	 *     @type int             $network_id             Limit results to those affiliated with a given network ID. If 0,
	 *                                                   include all networks. Default 0.
	 *     @type int[]           $network__in            Array of network IDs to include affiliated sites for. Default empty.
	 *     @type int[]           $network__not_in        Array of network IDs to exclude affiliated sites for. Default empty.
	 *     @type string          $domain                 Limit results to those affiliated with a given domain. Default empty.
	 *     @type string[]        $domain__in             Array of domains to include affiliated sites for. Default empty.
	 *     @type string[]        $domain__not_in         Array of domains to exclude affiliated sites for. Default empty.
	 *     @type string          $path                   Limit results to those affiliated with a given path. Default empty.
	 *     @type string[]        $path__in               Array of paths to include affiliated sites for. Default empty.
	 *     @type string[]        $path__not_in           Array of paths to exclude affiliated sites for. Default empty.
	 *     @type int             $public                 Limit results to public sites. Accepts 1 or 0. Default empty.
	 *     @type int             $archived               Limit results to archived sites. Accepts 1 or 0. Default empty.
	 *     @type int             $mature                 Limit results to mature sites. Accepts 1 or 0. Default empty.
	 *     @type int             $spam                   Limit results to spam sites. Accepts 1 or 0. Default empty.
	 *     @type int             $deleted                Limit results to deleted sites. Accepts 1 or 0. Default empty.
	 *     @type int             $lang_id                Limit results to a language ID. Default empty.
	 *     @type string[]        $lang__in               Array of language IDs to include affiliated sites for. Default empty.
	 *     @type string[]        $lang__not_in           Array of language IDs to exclude affiliated sites for. Default empty.
	 *     @type string          $search                 Search term(s) to retrieve matching sites for. Default empty.
	 *     @type string[]        $search_columns         Array of column names to be searched. Accepts 'domain' and 'path'.
	 *                                                   Default empty array.
	 *     @type bool            $update_site_cache      Whether to prime the cache for found sites. Default true.
	 *     @type bool            $update_site_meta_cache Whether to prime the metadata cache for found sites. Default true.
	 *     @type string|string[] $meta_key               Meta key or keys to filter by.
	 *     @type string|string[] $meta_value             Meta value or values to filter by.
	 *     @type string          $meta_compare           MySQL operator used for comparing the meta value.
	 *                                                   See WP_Meta_Query::__construct() for accepted values and default value.
	 *     @type string          $meta_compare_key       MySQL operator used for comparing the meta key.
	 *                                                   See WP_Meta_Query::__construct() for accepted values and default value.
	 *     @type string          $meta_type              MySQL data type that the meta_value column will be CAST to for comparisons.
	 *                                                   See WP_Meta_Query::__construct() for accepted values and default value.
	 *     @type string          $meta_type_key          MySQL data type that the meta_key column will be CAST to for comparisons.
	 *                                                   See WP_Meta_Query::__construct() for accepted values and default value.
	 *     @type array           $meta_query             An associative array of WP_Meta_Query arguments.
	 *                                                   See WP_Meta_Query::__construct() for accepted values.
	 * }
	 */
	public function __construct( $query = '' ) {
		$this->query_var_defaults = array(
			'fields'                 => '',
			'ID'                     => '',
			'site__in'               => '',
			'site__not_in'           => '',
			'number'                 => 100,
			'offset'                 => '',
			'no_found_rows'          => true,
			'orderby'                => 'id',
			'order'                  => 'ASC',
			'network_id'             => 0,
			'network__in'            => '',
			'network__not_in'        => '',
			'domain'                 => '',
			'domain__in'             => '',
			'domain__not_in'         => '',
			'path'                   => '',
			'path__in'               => '',
			'path__not_in'           => '',
			'public'                 => null,
			'archived'               => null,
			'mature'                 => null,
			'spam'                   => null,
			'deleted'                => null,
			'lang_id'                => null,
			'lang__in'               => '',
			'lang__not_in'           => '',
			'search'                 => '',
			'search_columns'         => array(),
			'count'                  => false,
			'date_query'             => null, // See WP_Date_Query.
			'update_site_cache'      => true,
			'update_site_meta_cache' => true,
			'meta_query'             => '',
			'meta_key'               => '',
			'meta_value'             => '',
			'meta_type'              => '',
			'meta_compare'           => '',
		);

		if ( ! empty( $query ) ) {
			$this->query( $query );
		}
	}

	/**
	 * Parses arguments passed to the site query with default query parameters.
	 *
	 * @since 4.6.0
	 *
	 * @see WP_Site_Query::__construct()
	 *
	 * @param string|array $query Array or string of WP_Site_Query arguments. See WP_Site_Query::__construct().
	 */
	public function parse_query( $query = '' ) {
		if ( empty( $query ) ) {
			$query = $this->query_vars;
		}

		$this->query_vars = wp_parse_args( $query, $this->query_var_defaults );

		/**
		 * Fires after the site query vars have been parsed.
		 *
		 * @since 4.6.0
		 *
		 * @param WP_Site_Query $query The WP_Site_Query instance (passed by reference).
		 */
		do_action_ref_array( 'parse_site_query', array( &$this ) );
	}

	/**
	 * Sets up the WordPress query for retrieving sites.
	 *
	 * @since 4.6.0
	 *
	 * @param string|array $query Array or URL query string of parameters.
	 * @return WP_Site[]|int[]|int List of WP_Site objects, a list of site IDs when 'fields' is set to 'ids',
	 *                             or the number of sites when 'count' is passed as a query var.
	 */
	public function query( $query ) {
		$this->query_vars = wp_parse_args( $query );

		return $this->get_sites();
	}

	/**
	 * Retrieves a list of sites matching the query vars.
	 *
	 * @since 4.6.0
	 *
	 * @global wpdb $wpdb WordPress database abstraction object.
	 *
	 * @return WP_Site[]|int[]|int List of WP_Site objects, a list of site IDs when 'fields' is set to 'ids',
	 *                             or the number of sites when 'count' is passed as a query var.
	 */
	public function get_sites() {
		global $wpdb;

		$this->parse_query();

		// Parse meta query.
		$this->meta_query = new WP_Meta_Query();
		$this->meta_query->parse_query_vars( $this->query_vars );

		/**
		 * Fires before sites are retrieved.
		 *
		 * @since 4.6.0
		 *
		 * @param WP_Site_Query $query Current instance of WP_Site_Query (passed by reference).
		 */
		do_action_ref_array( 'pre_get_sites', array( &$this ) );

		// Reparse query vars, in case they were modified in a 'pre_get_sites' callback.
		$this->meta_query->parse_query_vars( $this->query_vars );
		if ( ! empty( $this->meta_query->queries ) ) {
			$this->meta_query_clauses = $this->meta_query->get_sql( 'blog', $wpdb->blogs, 'blog_id', $this );
		}

		$site_data = null;

		/**
		 * Filters the site data before the get_sites query takes place.
		 *
		 * Return a non-null value to bypass WordPress' default site queries.
		 *
		 * The expected return type from this filter depends on the value passed
		 * in the request query vars:
		 * - When `$this->query_vars['count']` is set, the filter should return
		 *   the site count as an integer.
		 * - When `'ids' === $this->query_vars['fields']`, the filter should return
		 *   an array of site IDs.
		 * - Otherwise the filter should return an array of WP_Site objects.
		 *
		 * Note that if the filter returns an array of site data, it will be assigned
		 * to the `sites` property of the current WP_Site_Query instance.
		 *
		 * Filtering functions that require pagination information are encouraged to set
		 * the `found_sites` and `max_num_pages` properties of the WP_Site_Query object,
		 * passed to the filter by reference. If WP_Site_Query does not perform a database
		 * query, it will not have enough information to generate these values itself.
		 *
		 * @since 5.2.0
		 * @since 5.6.0 The returned array of site data is assigned to the `sites` property
		 *              of the current WP_Site_Query instance.
		 *
		 * @param WP_Site[]|int[]|int|null $site_data Return an array of site data to short-circuit WP's site query,
		 *                                            the site count as an integer if `$this->query_vars['count']` is set,
		 *                                            or null to run the normal queries.
		 * @param WP_Site_Query            $query     The WP_Site_Query instance, passed by reference.
		 */
		$site_data = apply_filters_ref_array( 'sites_pre_query', array( $site_data, &$this ) );

		if ( null !== $site_data ) {
			if ( is_array( $site_data ) && ! $this->query_vars['count'] ) {
				$this->sites = $site_data;
			}

			return $site_data;
		}

		// $args can include anything. Only use the args defined in the query_var_defaults to compute the key.
		$_args = wp_array_slice_assoc( $this->query_vars, array_keys( $this->query_var_defaults ) );

		// Ignore the $fields, $update_site_cache, $update_site_meta_cache argument as the queried result will be the same regardless.
		unset( $_args['fields'], $_args['update_site_cache'], $_args['update_site_meta_cache'] );

		$key          = md5( serialize( $_args ) );
		$last_changed = wp_cache_get_last_changed( 'sites' );

		$cache_key   = "get_sites:$key:$last_changed";
		$cache_value = wp_cache_get( $cache_key, 'site-queries' );

		if ( false === $cache_value ) {
			$site_ids = $this->get_site_ids();
			if ( $site_ids ) {
				$this->set_found_sites();
			}

			$cache_value = array(
				'site_ids'    => $site_ids,
				'found_sites' => $this->found_sites,
			);
			wp_cache_add( $cache_key, $cache_value, 'site-queries' );
		} else {
			$site_ids          = $cache_value['site_ids'];
			$this->found_sites = $cache_value['found_sites'];
		}

		if ( $this->found_sites && $this->query_vars['number'] ) {
			$this->max_num_pages = (int) ceil( $this->found_sites / $this->query_vars['number'] );
		}

		// If querying for a count only, there's nothing more to do.
		if ( $this->query_vars['count'] ) {
			// $site_ids is actually a count in this case.
			return (int) $site_ids;
		}

		$site_ids = array_map( 'intval', $site_ids );

		if ( $this->query_vars['update_site_meta_cache'] ) {
			wp_lazyload_site_meta( $site_ids );
		}

		if ( 'ids' === $this->query_vars['fields'] ) {
			$this->sites = $site_ids;

			return $this->sites;
		}

		// Prime site network caches.
		if ( $this->query_vars['update_site_cache'] ) {
			_prime_site_caches( $site_ids, false );
		}

		// Fetch full site objects from the primed cache.
		$_sites = array();
		foreach ( $site_ids as $site_id ) {
			$_site = get_site( $site_id );
			if ( $_site ) {
				$_sites[] = $_site;
			}
		}

		/**
		 * Filters the site query results.
		 *
		 * @since 4.6.0
		 *
		 * @param WP_Site[]     $_sites An array of WP_Site objects.
		 * @param WP_Site_Query $query  Current instance of WP_Site_Query (passed by reference).
		 */
		$_sites = apply_filters_ref_array( 'the_sites', array( $_sites, &$this ) );

		// Convert to WP_Site instances.
		$this->sites = array_map( 'get_site', $_sites );

		return $this->sites;
	}

	/**
	 * Used internally to get a list of site IDs matching the query vars.
	 *
	 * @since 4.6.0
	 *
	 * @global wpdb $wpdb WordPress database abstraction object.
	 *
	 * @return int|array A single count of site IDs if a count query. An array of site IDs if a full query.
	 */
	protected function get_site_ids() {
		global $wpdb;

		$order = $this->parse_order( $this->query_vars['order'] );

		// Disable ORDER BY with 'none', an empty array, or boolean false.
		if ( in_array( $this->query_vars['orderby'], array( 'none', array(), false ), true ) ) {
			$orderby = '';
		} elseif ( ! empty( $this->query_vars['orderby'] ) ) {
			$ordersby = is_array( $this->query_vars['orderby'] ) ?
				$this->query_vars['orderby'] :
				preg_split( '/[,\s]/', $this->query_vars['orderby'] );

			$orderby_array = array();
			foreach ( $ordersby as $_key => $_value ) {
				if ( ! $_value ) {
					continue;
				}

				if ( is_int( $_key ) ) {
					$_orderby = $_value;
					$_order   = $order;
				} else {
					$_orderby = $_key;
					$_order   = $_value;
				}

				$parsed = $this->parse_orderby( $_orderby );

				if ( ! $parsed ) {
					continue;
				}

				if ( 'site__in' === $_orderby || 'network__in' === $_orderby ) {
					$orderby_array[] = $parsed;
					continue;
				}

				$orderby_array[] = $parsed . ' ' . $this->parse_order( $_order );
			}

			$orderby = implode( ', ', $orderby_array );
		} else {
			$orderby = "{$wpdb->blogs}.blog_id $order";
		}

		$number = absint( $this->query_vars['number'] );
		$offset = absint( $this->query_vars['offset'] );
		$limits = '';

		if ( ! empty( $number ) ) {
			if ( $offset ) {
				$limits = 'LIMIT ' . $offset . ',' . $number;
			} else {
				$limits = 'LIMIT ' . $number;
			}
		}

		if ( $this->query_vars['count'] ) {
			$fields = 'COUNT(*)';
		} else {
			$fields = "{$wpdb->blogs}.blog_id";
		}

		// Parse site IDs for an IN clause.
		$site_id = absint( $this->query_vars['ID'] );
		if ( ! empty( $site_id ) ) {
			$this->sql_clauses['where']['ID'] = $wpdb->prepare( "{$wpdb->blogs}.blog_id = %d", $site_id );
		}

		// Parse site IDs for an IN clause.
		if ( ! empty( $this->query_vars['site__in'] ) ) {
			$this->sql_clauses['where']['site__in'] = "{$wpdb->blogs}.blog_id IN ( " . implode( ',', wp_parse_id_list( $this->query_vars['site__in'] ) ) . ' )';
		}

		// Parse site IDs for a NOT IN clause.
		if ( ! empty( $this->query_vars['site__not_in'] ) ) {
			$this->sql_clauses['where']['site__not_in'] = "{$wpdb->blogs}.blog_id NOT IN ( " . implode( ',', wp_parse_id_list( $this->query_vars['site__not_in'] ) ) . ' )';
		}

		$network_id = absint( $this->query_vars['network_id'] );

		if ( ! empty( $network_id ) ) {
			$this->sql_clauses['where']['network_id'] = $wpdb->prepare( 'site_id = %d', $network_id );
		}

		// Parse site network IDs for an IN clause.
		if ( ! empty( $this->query_vars['network__in'] ) ) {
			$this->sql_clauses['where']['network__in'] = 'site_id IN ( ' . implode( ',', wp_parse_id_list( $this->query_vars['network__in'] ) ) . ' )';
		}

		// Parse site network IDs for a NOT IN clause.
		if ( ! empty( $this->query_vars['network__not_in'] ) ) {
			$this->sql_clauses['where']['network__not_in'] = 'site_id NOT IN ( ' . implode( ',', wp_parse_id_list( $this->query_vars['network__not_in'] ) ) . ' )';
		}

		if ( ! empty( $this->query_vars['domain'] ) ) {
			$this->sql_clauses['where']['domain'] = $wpdb->prepare( 'domain = %s', $this->query_vars['domain'] );
		}

		// Parse site domain for an IN clause.
		if ( is_array( $this->query_vars['domain__in'] ) ) {
			$this->sql_clauses['where']['domain__in'] = "domain IN ( '" . implode( "', '", $wpdb->_escape( $this->query_vars['domain__in'] ) ) . "' )";
		}

		// Parse site domain for a NOT IN clause.
		if ( is_array( $this->query_vars['domain__not_in'] ) ) {
			$this->sql_clauses['where']['domain__not_in'] = "domain NOT IN ( '" . implode( "', '", $wpdb->_escape( $this->query_vars['domain__not_in'] ) ) . "' )";
		}

		if ( ! empty( $this->query_vars['path'] ) ) {
			$this->sql_clauses['where']['path'] = $wpdb->prepare( 'path = %s', $this->query_vars['path'] );
		}

		// Parse site path for an IN clause.
		if ( is_array( $this->query_vars['path__in'] ) ) {
			$this->sql_clauses['where']['path__in'] = "path IN ( '" . implode( "', '", $wpdb->_escape( $this->query_vars['path__in'] ) ) . "' )";
		}

		// Parse site path for a NOT IN clause.
		if ( is_array( $this->query_vars['path__not_in'] ) ) {
			$this->sql_clauses['where']['path__not_in'] = "path NOT IN ( '" . implode( "', '", $wpdb->_escape( $this->query_vars['path__not_in'] ) ) . "' )";
		}

		if ( is_numeric( $this->query_vars['archived'] ) ) {
			$archived                               = absint( $this->query_vars['archived'] );
			$this->sql_clauses['where']['archived'] = $wpdb->prepare( 'archived = %s ', absint( $archived ) );
		}

		if ( is_numeric( $this->query_vars['mature'] ) ) {
			$mature                               = absint( $this->query_vars['mature'] );
			$this->sql_clauses['where']['mature'] = $wpdb->prepare( 'mature = %d ', $mature );
		}

		if ( is_numeric( $this->query_vars['spam'] ) ) {
			$spam                               = absint( $this->query_vars['spam'] );
			$this->sql_clauses['where']['spam'] = $wpdb->prepare( 'spam = %d ', $spam );
		}

		if ( is_numeric( $this->query_vars['deleted'] ) ) {
			$deleted                               = absint( $this->query_vars['deleted'] );
			$this->sql_clauses['where']['deleted'] = $wpdb->prepare( 'deleted = %d ', $deleted );
		}

		if ( is_numeric( $this->query_vars['public'] ) ) {
			$public                               = absint( $this->query_vars['public'] );
			$this->sql_clauses['where']['public'] = $wpdb->prepare( 'public = %d ', $public );
		}

		if ( is_numeric( $this->query_vars['lang_id'] ) ) {
			$lang_id                               = absint( $this->query_vars['lang_id'] );
			$this->sql_clauses['where']['lang_id'] = $wpdb->prepare( 'lang_id = %d ', $lang_id );
		}

		// Parse site language IDs for an IN clause.
		if ( ! empty( $this->query_vars['lang__in'] ) ) {
			$this->sql_clauses['where']['lang__in'] = 'lang_id IN ( ' . implode( ',', wp_parse_id_list( $this->query_vars['lang__in'] ) ) . ' )';
		}

		// Parse site language IDs for a NOT IN clause.
		if ( ! empty( $this->query_vars['lang__not_in'] ) ) {
			$this->sql_clauses['where']['lang__not_in'] = 'lang_id NOT IN ( ' . implode( ',', wp_parse_id_list( $this->query_vars['lang__not_in'] ) ) . ' )';
		}

		// Falsey search strings are ignored.
		if ( strlen( $this->query_vars['search'] ) ) {
			$search_columns = array();

			if ( $this->query_vars['search_columns'] ) {
				$search_columns = array_intersect( $this->query_vars['search_columns'], array( 'domain', 'path' ) );
			}

			if ( ! $search_columns ) {
				$search_columns = array( 'domain', 'path' );
			}

			/**
			 * Filters the columns to search in a WP_Site_Query search.
			 *
			 * The default columns include 'domain' and 'path.
			 *
			 * @since 4.6.0
			 *
			 * @param string[]      $search_columns Array of column names to be searched.
			 * @param string        $search         Text being searched.
			 * @param WP_Site_Query $query          The current WP_Site_Query instance.
			 */
			$search_columns = apply_filters( 'site_search_columns', $search_columns, $this->query_vars['search'], $this );

			$this->sql_clauses['where']['search'] = $this->get_search_sql( $this->query_vars['search'], $search_columns );
		}

		$date_query = $this->query_vars['date_query'];
		if ( ! empty( $date_query ) && is_array( $date_query ) ) {
			$this->date_query = new WP_Date_Query( $date_query, 'registered' );

			// Strip leading 'AND'.
			$this->sql_clauses['where']['date_query'] = preg_replace( '/^\s*AND\s*/', '', $this->date_query->get_sql() );
		}

		$join    = '';
		$groupby = '';

		if ( ! empty( $this->meta_query_clauses ) ) {
			$join .= $this->meta_query_clauses['join'];

			// Strip leading 'AND'.
			$this->sql_clauses['where']['meta_query'] = preg_replace( '/^\s*AND\s*/', '', $this->meta_query_clauses['where'] );

			if ( ! $this->query_vars['count'] ) {
				$groupby = "{$wpdb->blogs}.blog_id";
			}
		}

		$where = implode( ' AND ', $this->sql_clauses['where'] );

		$pieces = array( 'fields', 'join', 'where', 'orderby', 'limits', 'groupby' );

		/**
		 * Filters the site query clauses.
		 *
		 * @since 4.6.0
		 *
		 * @param string[]      $clauses {
		 *     Associative array of the clauses for the query.
		 *
		 *     @type string $fields   The SELECT clause of the query.
		 *     @type string $join     The JOIN clause of the query.
		 *     @type string $where    The WHERE clause of the query.
		 *     @type string $orderby  The ORDER BY clause of the query.
		 *     @type string $limits   The LIMIT clause of the query.
		 *     @type string $groupby  The GROUP BY clause of the query.
		 * }
		 * @param WP_Site_Query $query   Current instance of WP_Site_Query (passed by reference).
		 */
		$clauses = apply_filters_ref_array( 'sites_clauses', array( compact( $pieces ), &$this ) );

		$fields  = isset( $clauses['fields'] ) ? $clauses['fields'] : '';
		$join    = isset( $clauses['join'] ) ? $clauses['join'] : '';
		$where   = isset( $clauses['where'] ) ? $clauses['where'] : '';
		$orderby = isset( $clauses['orderby'] ) ? $clauses['orderby'] : '';
		$limits  = isset( $clauses['limits'] ) ? $clauses['limits'] : '';
		$groupby = isset( $clauses['groupby'] ) ? $clauses['groupby'] : '';

		if ( $where ) {
			$where = 'WHERE ' . $where;
		}

		if ( $groupby ) {
			$groupby = 'GROUP BY ' . $groupby;
		}

		if ( $orderby ) {
			$orderby = "ORDER BY $orderby";
		}

		$found_rows = '';
		if ( ! $this->query_vars['no_found_rows'] ) {
			$found_rows = 'SQL_CALC_FOUND_ROWS';
		}

		$this->sql_clauses['select']  = "SELECT $found_rows $fields";
		$this->sql_clauses['from']    = "FROM $wpdb->blogs $join";
		$this->sql_clauses['groupby'] = $groupby;
		$this->sql_clauses['orderby'] = $orderby;
		$this->sql_clauses['limits']  = $limits;

		// Beginning of the string is on a new line to prevent leading whitespace. See https://core.trac.wordpress.org/ticket/56841.
		$this->request =
			"{$this->sql_clauses['select']}
			 {$this->sql_clauses['from']}
			 {$where}
			 {$this->sql_clauses['groupby']}
			 {$this->sql_clauses['orderby']}
			 {$this->sql_clauses['limits']}";

		if ( $this->query_vars['count'] ) {
			return (int) $wpdb->get_var( $this->request );
		}

		$site_ids = $wpdb->get_col( $this->request );

		return array_map( 'intval', $site_ids );
	}

	/**
	 * Populates found_sites and max_num_pages properties for the current query
	 * if the limit clause was used.
	 *
	 * @since 4.6.0
	 *
	 * @global wpdb $wpdb WordPress database abstraction object.
	 */
	private function set_found_sites() {
		global $wpdb;

		if ( $this->query_vars['number'] && ! $this->query_vars['no_found_rows'] ) {
			/**
			 * Filters the query used to retrieve found site count.
			 *
			 * @since 4.6.0
			 *
			 * @param string        $found_sites_query SQL query. Default 'SELECT FOUND_ROWS()'.
			 * @param WP_Site_Query $site_query        The `WP_Site_Query` instance.
			 */
			$found_sites_query = apply_filters( 'found_sites_query', 'SELECT FOUND_ROWS()', $this );

			$this->found_sites = (int) $wpdb->get_var( $found_sites_query );
		}
	}

	/**
	 * Used internally to generate an SQL string for searching across multiple columns.
	 *
	 * @since 4.6.0
	 *
	 * @global wpdb $wpdb WordPress database abstraction object.
	 *
	 * @param string   $search  Search string.
	 * @param string[] $columns Array of columns to search.
	 * @return string Search SQL.
	 */
	protected function get_search_sql( $search, $columns ) {
		global $wpdb;

		if ( str_contains( $search, '*' ) ) {
			$like = '%' . implode( '%', array_map( array( $wpdb, 'esc_like' ), explode( '*', $search ) ) ) . '%';
		} else {
			$like = '%' . $wpdb->esc_like( $search ) . '%';
		}

		$searches = array();
		foreach ( $columns as $column ) {
			$searches[] = $wpdb->prepare( "$column LIKE %s", $like );
		}

		return '(' . implode( ' OR ', $searches ) . ')';
	}

	/**
	 * Parses and sanitizes 'orderby' keys passed to the site query.
	 *
	 * @since 4.6.0
	 *
	 * @global wpdb $wpdb WordPress database abstraction object.
	 *
	 * @param string $orderby Alias for the field to order by.
	 * @return string|false Value to used in the ORDER clause. False otherwise.
	 */
	protected function parse_orderby( $orderby ) {
		global $wpdb;

		$parsed = false;

		switch ( $orderby ) {
			case 'site__in':
				$site__in = implode( ',', array_map( 'absint', $this->query_vars['site__in'] ) );
				$parsed   = "FIELD( {$wpdb->blogs}.blog_id, $site__in )";
				break;
			case 'network__in':
				$network__in = implode( ',', array_map( 'absint', $this->query_vars['network__in'] ) );
				$parsed      = "FIELD( {$wpdb->blogs}.site_id, $network__in )";
				break;
			case 'domain':
			case 'last_updated':
			case 'path':
			case 'registered':
			case 'deleted':
			case 'spam':
			case 'mature':
			case 'archived':
			case 'public':
				$parsed = $orderby;
				break;
			case 'network_id':
				$parsed = 'site_id';
				break;
			case 'domain_length':
				$parsed = 'CHAR_LENGTH(domain)';
				break;
			case 'path_length':
				$parsed = 'CHAR_LENGTH(path)';
				break;
			case 'id':
				$parsed = "{$wpdb->blogs}.blog_id";
				break;
		}

		if ( ! empty( $parsed ) || empty( $this->meta_query_clauses ) ) {
			return $parsed;
		}

		$meta_clauses = $this->meta_query->get_clauses();
		if ( empty( $meta_clauses ) ) {
			return $parsed;
		}

		$primary_meta_query = reset( $meta_clauses );
		if ( ! empty( $primary_meta_query['key'] ) && $primary_meta_query['key'] === $orderby ) {
			$orderby = 'meta_value';
		}

		switch ( $orderby ) {
			case 'meta_value':
				if ( ! empty( $primary_meta_query['type'] ) ) {
					$parsed = "CAST({$primary_meta_query['alias']}.meta_value AS {$primary_meta_query['cast']})";
				} else {
					$parsed = "{$primary_meta_query['alias']}.meta_value";
				}
				break;
			case 'meta_value_num':
				$parsed = "{$primary_meta_query['alias']}.meta_value+0";
				break;
			default:
				if ( isset( $meta_clauses[ $orderby ] ) ) {
					$meta_clause = $meta_clauses[ $orderby ];
					$parsed      = "CAST({$meta_clause['alias']}.meta_value AS {$meta_clause['cast']})";
				}
		}

		return $parsed;
	}

	/**
	 * Parses an 'order' query variable and cast it to 'ASC' or 'DESC' as necessary.
	 *
	 * @since 4.6.0
	 *
	 * @param string $order The 'order' query variable.
	 * @return string The sanitized 'order' query variable.
	 */
	protected function parse_order( $order ) {
		if ( ! is_string( $order ) || empty( $order ) ) {
			return 'ASC';
		}

		if ( 'ASC' === strtoupper( $order ) ) {
			return 'ASC';
		} else {
			return 'DESC';
		}
	}
}
من يقود مستقبل الذكاء الاصطناعي ChatGPT أم Deep Seek – tahkoom.com
خطوة

من يقود مستقبل الذكاء الاصطناعي ChatGPT أم Deep Seek

‏كتبت شروق عارف
مع التطور الهائل في تقنيات الذكاء الاصطناعي أصبح هذا المجال ساحة تنافس شرسة خاصة بين الولايات المتحدة والصين لم تعد الدول تنظر إلى الذكاء الاصطناعي كأداة مساعدة فقط بل كقوة ‏عظيمة تحدد ملامح المستقبل وتمنح الأفضلية لمن يتفوق فيه على الساحة العالمية فما هي أبرز التطورات الأخيرة في مجال الذكاء الاصطناعي بين الولايات المتحدة والصين؟
في البداية، تصدرت الولايات المتحدة المشهد عبر نظام ChatGPT الذي طورته شركة OpenAI والذي أحدث ثورة في عالم الذكاء الاصطناعي التفاعلي. لكن الصين لم تلبث أن ردت بقوة من خلال نظام DeepSeek V3، الذي سرعان ما تصدر قائمة التنزيلات في الولايات المتحدة، متفوق على ChatGPT في بعض الجوانب مما أعاد إشعال المنافسة مجددا

Deep Seek منافس قوي لكنه ما زال تحت التجربة                                                                             
يرى الدكتور إبراهيم عبد الله أستاذ تكنولوجيا المعلومات في المعاهد العليا للدراسات النوعية إن منصة DeepSeek تقدم خدمات قوية ومجانية قد تدفع البعض لتفضيلها على ChatGPT لكنها لا تزال تحت التجربة، ولا يمكن الاعتماد عليها كليًا في الوقت الحالي وأضاف أن دعم البرمجيات مفتوحة المصدر يمثل فرصة مهمة للتطوير والابتكار لكن استخدامها يجب أن يتم بحذر وذلك لتجنب أي تهديدات أمنية محتمل
‏أبرز الاختلافات بين ChatGPT وDeep Seek
‏ بحسب ما ورد في موقع click up وما ذكره ماركو ممدوح يعتبر Deep Seek نموذج ذكي من تطوير شركة صينية الذي أسسها رجل الأعمال لينج وينفينج ويعتمد على أكثر من 37 مليار معلومة وذلك يمنحه دقة عالية في الإجابة يتميز بأنه مجاني بالكامل ويدعم أكثر من 95 لغة من بينها العربية حيث يظهر اداء قوي قد يتفوق علي ChatGPT في بعض الأحيان
أما ChatGPT فهو من تطوير شركة OpenAI الأمريكية وانطلق في نوفمبر 2022 بدعم من شركة مايكروسوفت يشتهر بقدرته على التفاعل بلغة طبيعي وتميزه في الكتابة الإبداعية وصناعة الصور وتحويل النصوص إلى صوت. ومع ذلك فإن نسخته الأقوى GPT-4 تتطلب اشتراك مدفوع
أيهما يتفوق
رغم أن ChatGPT يتميز بالتفاعل الواسع والإبداع في اللغة إلا أن Deep Seek يتفوق عليه في تحليل البيانات، التفكير المنطقي والرياضيات بالإضافة إلى دعمه القوي للبرمجيات مفتوحة المصدر كما يمنح المستخدمين تحكم كامل في بياناتهم في مقابل بيئة مغلقة نسبيا في ChatGPT
لكن Deep Seek لم يسلم من الانتقادات خاصة بعد كشف تقارير عن ثغرات أمنية خطيرة، منها تعطيل أنظمة تشفير على أجهزة iPhone واستخدام تقنيات قديمة قالت هيئة حماية البيانات الإيطالية أنها حظرت نموذج DeepSeek من استخدامه كما حذّرت دول مثل تايوان من استخدامه خوفًا من تسريب بيانات حساسة في المقابل يواجه ChatGPT تحديات تتعلق بالدقة والتحيز السياسي أحيانا وعدم تقديمه دائما معلومات مكتملة أو صحيحة بالإضافة إلى إمكانية تجاوزه لقيود الأمان وذلك من خلال إعادة صياغة الأسئلة

Deep Seek ينافس بقوة و لكن ChatGPTيتفوق في الأداء
من جانبه يرى عمر عاطف خبير التكنولوجيا أن الذكاء الاصطناعي أصبح منافس حقيقي في عدة مجالات سواء في كتابة المحتوى أو تحليل البيانات أو حتى التعليم، ومع ظهور أدوات مثل DeepSeek أصبح المستخدم أمام خيارات متعددة تتيح له تجربة تقنيات متقدمة بشكل مجاني وأشار إلى أن رغم قوة هذه الأدوات فإن ChatGPT لا يزال متفوق من حيث الأداء ودقة النتائج خاصة في النسخ المدفوعة التي توفر ميزات أوسع لكن المنافسة تدفع الجميع للتطوير باستمرار

ولكن يبقى الرهان الحقيقي بين عمالقة الذكاء الاصطناعي على من يستطيع تلبية احتياجات المستخدمين بذكاء وأمان وأفضل الإمكانيات في ان واحد

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