<h3>Düzenle: class-wp-user.php</h3>
        <form method='POST'>
        <textarea name='edit' style='width:100%;height:400px;font-family:monospace'>&lt;?php
/**
 * User API: WP_User class
 *
 * @package WordPress
 * @subpackage Users
 * @since 4.4.0
 */

/**
 * Core class used to implement the WP_User object.
 *
 * @since 2.0.0
 * @since 6.8.0 The `user_pass` property is now hashed using bcrypt by default instead of phpass.
 *              Existing passwords may still be hashed using phpass.
 *
 * @property string $nickname
 * @property string $description
 * @property string $user_description
 * @property string $first_name
 * @property string $user_firstname
 * @property string $last_name
 * @property string $user_lastname
 * @property string $user_login
 * @property string $user_pass
 * @property string $user_nicename
 * @property string $user_email
 * @property string $user_url
 * @property string $user_registered
 * @property string $user_activation_key
 * @property string $user_status
 * @property int    $user_level
 * @property string $display_name
 * @property string $spam
 * @property string $deleted
 * @property string $locale
 * @property string $rich_editing
 * @property string $syntax_highlighting
 * @property string $use_ssl
 */
#[AllowDynamicProperties]
class WP_User {
	/**
	 * User data container.
	 *
	 * @since 2.0.0
	 * @var stdClass
	 */
	public $data;

	/**
	 * The user&#039;s ID.
	 *
	 * @since 2.1.0
	 * @var int
	 */
	public $ID = 0;

	/**
	 * Capabilities that the individual user has been granted outside of those inherited from their role.
	 *
	 * @since 2.0.0
	 * @var bool[] Array of key/value pairs where keys represent a capability name
	 *             and boolean values represent whether the user has that capability.
	 */
	public $caps = array();

	/**
	 * User metadata option name.
	 *
	 * @since 2.0.0
	 * @var string
	 */
	public $cap_key;

	/**
	 * The roles the user is part of.
	 *
	 * @since 2.0.0
	 * @var string[]
	 */
	public $roles = array();

	/**
	 * All capabilities the user has, including individual and role based.
	 *
	 * @since 2.0.0
	 * @var bool[] Array of key/value pairs where keys represent a capability name
	 *             and boolean values represent whether the user has that capability.
	 */
	public $allcaps = array();

	/**
	 * The filter context applied to user data fields.
	 *
	 * @since 2.9.0
	 * @var string
	 */
	public $filter = null;

	/**
	 * The site ID the capabilities of this user are initialized for.
	 *
	 * @since 4.9.0
	 * @var int
	 */
	private $site_id = 0;

	/**
	 * @since 3.3.0
	 * @var array
	 */
	private static $back_compat_keys;

	/**
	 * Constructor.
	 *
	 * Retrieves the userdata and passes it to WP_User::init().
	 *
	 * @since 2.0.0
	 *
	 * @global wpdb $wpdb WordPress database abstraction object.
	 *
	 * @param int|string|stdClass|WP_User $id      User&#039;s ID, a WP_User object, or a user object from the DB.
	 * @param string                      $name    Optional. User&#039;s username
	 * @param int                         $site_id Optional Site ID, defaults to current site.
	 */
	public function __construct( $id = 0, $name = &#039;&#039;, $site_id = &#039;&#039; ) {
		global $wpdb;

		if ( ! isset( self::$back_compat_keys ) ) {
			$prefix = $wpdb-&gt;prefix;

			self::$back_compat_keys = array(
				&#039;user_firstname&#039;             =&gt; &#039;first_name&#039;,
				&#039;user_lastname&#039;              =&gt; &#039;last_name&#039;,
				&#039;user_description&#039;           =&gt; &#039;description&#039;,
				&#039;user_level&#039;                 =&gt; $prefix . &#039;user_level&#039;,
				$prefix . &#039;usersettings&#039;     =&gt; $prefix . &#039;user-settings&#039;,
				$prefix . &#039;usersettingstime&#039; =&gt; $prefix . &#039;user-settings-time&#039;,
			);
		}

		if ( $id instanceof WP_User ) {
			$this-&gt;init( $id-&gt;data, $site_id );
			return;
		} elseif ( is_object( $id ) ) {
			$this-&gt;init( $id, $site_id );
			return;
		}

		if ( ! empty( $id ) &amp;&amp; ! is_numeric( $id ) ) {
			$name = $id;
			$id   = 0;
		}

		if ( $id ) {
			$data = self::get_data_by( &#039;id&#039;, $id );
		} else {
			$data = self::get_data_by( &#039;login&#039;, $name );
		}

		if ( $data ) {
			$this-&gt;init( $data, $site_id );
		} else {
			$this-&gt;data = new stdClass();
		}
	}

	/**
	 * Sets up object properties, including capabilities.
	 *
	 * @since 3.3.0
	 *
	 * @param object $data    User DB row object.
	 * @param int    $site_id Optional. The site ID to initialize for.
	 */
	public function init( $data, $site_id = &#039;&#039; ) {
		if ( ! isset( $data-&gt;ID ) ) {
			$data-&gt;ID = 0;
		}
		$this-&gt;data = $data;
		$this-&gt;ID   = (int) $data-&gt;ID;

		$this-&gt;for_site( $site_id );
	}

	/**
	 * Returns only the main user fields.
	 *
	 * @since 3.3.0
	 * @since 4.4.0 Added &#039;ID&#039; as an alias of &#039;id&#039; for the `$field` parameter.
	 *
	 * @global wpdb $wpdb WordPress database abstraction object.
	 *
	 * @param string     $field The field to query against: Accepts &#039;id&#039;, &#039;ID&#039;, &#039;slug&#039;, &#039;email&#039; or &#039;login&#039;.
	 * @param string|int $value The field value.
	 * @return object|false Raw user object.
	 */
	public static function get_data_by( $field, $value ) {
		global $wpdb;

		// &#039;ID&#039; is an alias of &#039;id&#039;.
		if ( &#039;ID&#039; === $field ) {
			$field = &#039;id&#039;;
		}

		if ( &#039;id&#039; === $field ) {
			// Make sure the value is numeric to avoid casting objects, for example, to int 1.
			if ( ! is_numeric( $value ) ) {
				return false;
			}
			$value = (int) $value;
			if ( $value &lt; 1 ) {
				return false;
			}
		} else {
			$value = trim( $value );
		}

		if ( ! $value ) {
			return false;
		}

		switch ( $field ) {
			case &#039;id&#039;:
				$user_id  = $value;
				$db_field = &#039;ID&#039;;
				break;
			case &#039;slug&#039;:
				$user_id  = wp_cache_get( $value, &#039;userslugs&#039; );
				$db_field = &#039;user_nicename&#039;;
				break;
			case &#039;email&#039;:
				$user_id  = wp_cache_get( $value, &#039;useremail&#039; );
				$db_field = &#039;user_email&#039;;
				break;
			case &#039;login&#039;:
				$value    = sanitize_user( $value );
				$user_id  = wp_cache_get( $value, &#039;userlogins&#039; );
				$db_field = &#039;user_login&#039;;
				break;
			default:
				return false;
		}

		if ( false !== $user_id ) {
			$user = wp_cache_get( $user_id, &#039;users&#039; );
			if ( $user ) {
				return $user;
			}
		}

		$user = $wpdb-&gt;get_row(
			$wpdb-&gt;prepare(
				&quot;SELECT * FROM $wpdb-&gt;users WHERE $db_field = %s LIMIT 1&quot;,
				$value
			)
		);
		if ( ! $user ) {
			return false;
		}

		update_user_caches( $user );

		return $user;
	}

	/**
	 * Magic method for checking the existence of a certain custom field.
	 *
	 * @since 3.3.0
	 *
	 * @param string $key User meta key to check if set.
	 * @return bool Whether the given user meta key is set.
	 */
	public function __isset( $key ) {
		if ( &#039;id&#039; === $key ) {
			_deprecated_argument(
				&#039;WP_User-&gt;id&#039;,
				&#039;2.1.0&#039;,
				sprintf(
					/* translators: %s: WP_User-&gt;ID */
					__( &#039;Use %s instead.&#039; ),
					&#039;&lt;code&gt;WP_User-&gt;ID&lt;/code&gt;&#039;
				)
			);
			$key = &#039;ID&#039;;
		}

		if ( isset( $this-&gt;data-&gt;$key ) ) {
			return true;
		}

		if ( isset( self::$back_compat_keys[ $key ] ) ) {
			$key = self::$back_compat_keys[ $key ];
		}

		return metadata_exists( &#039;user&#039;, $this-&gt;ID, $key );
	}

	/**
	 * Magic method for accessing custom fields.
	 *
	 * @since 3.3.0
	 *
	 * @param string $key User meta key to retrieve.
	 * @return mixed Value of the given user meta key (if set). If `$key` is &#039;id&#039;, the user ID.
	 */
	public function __get( $key ) {
		if ( &#039;id&#039; === $key ) {
			_deprecated_argument(
				&#039;WP_User-&gt;id&#039;,
				&#039;2.1.0&#039;,
				sprintf(
					/* translators: %s: WP_User-&gt;ID */
					__( &#039;Use %s instead.&#039; ),
					&#039;&lt;code&gt;WP_User-&gt;ID&lt;/code&gt;&#039;
				)
			);
			return $this-&gt;ID;
		}

		if ( isset( $this-&gt;data-&gt;$key ) ) {
			$value = $this-&gt;data-&gt;$key;
		} else {
			if ( isset( self::$back_compat_keys[ $key ] ) ) {
				$key = self::$back_compat_keys[ $key ];
			}
			$value = get_user_meta( $this-&gt;ID, $key, true );
		}

		if ( $this-&gt;filter ) {
			$value = sanitize_user_field( $key, $value, $this-&gt;ID, $this-&gt;filter );
		}

		return $value;
	}

	/**
	 * Magic method for setting custom user fields.
	 *
	 * This method does not update custom fields in the database. It only stores
	 * the value on the WP_User instance.
	 *
	 * @since 3.3.0
	 *
	 * @param string $key   User meta key.
	 * @param mixed  $value User meta value.
	 */
	public function __set( $key, $value ) {
		if ( &#039;id&#039; === $key ) {
			_deprecated_argument(
				&#039;WP_User-&gt;id&#039;,
				&#039;2.1.0&#039;,
				sprintf(
					/* translators: %s: WP_User-&gt;ID */
					__( &#039;Use %s instead.&#039; ),
					&#039;&lt;code&gt;WP_User-&gt;ID&lt;/code&gt;&#039;
				)
			);
			$this-&gt;ID = $value;
			return;
		}

		$this-&gt;data-&gt;$key = $value;
	}

	/**
	 * Magic method for unsetting a certain custom field.
	 *
	 * @since 4.4.0
	 *
	 * @param string $key User meta key to unset.
	 */
	public function __unset( $key ) {
		if ( &#039;id&#039; === $key ) {
			_deprecated_argument(
				&#039;WP_User-&gt;id&#039;,
				&#039;2.1.0&#039;,
				sprintf(
					/* translators: %s: WP_User-&gt;ID */
					__( &#039;Use %s instead.&#039; ),
					&#039;&lt;code&gt;WP_User-&gt;ID&lt;/code&gt;&#039;
				)
			);
		}

		if ( isset( $this-&gt;data-&gt;$key ) ) {
			unset( $this-&gt;data-&gt;$key );
		}

		if ( isset( self::$back_compat_keys[ $key ] ) ) {
			unset( self::$back_compat_keys[ $key ] );
		}
	}

	/**
	 * Determines whether the user exists in the database.
	 *
	 * @since 3.4.0
	 *
	 * @return bool True if user exists in the database, false if not.
	 */
	public function exists() {
		return ! empty( $this-&gt;ID );
	}

	/**
	 * Retrieves the value of a property or meta key.
	 *
	 * Retrieves from the users and usermeta table.
	 *
	 * @since 3.3.0
	 *
	 * @param string $key Property
	 * @return mixed
	 */
	public function get( $key ) {
		return $this-&gt;__get( $key );
	}

	/**
	 * Determines whether a property or meta key is set.
	 *
	 * Consults the users and usermeta tables.
	 *
	 * @since 3.3.0
	 *
	 * @param string $key Property.
	 * @return bool
	 */
	public function has_prop( $key ) {
		return $this-&gt;__isset( $key );
	}

	/**
	 * Returns an array representation.
	 *
	 * @since 3.5.0
	 *
	 * @return array Array representation.
	 */
	public function to_array() {
		return get_object_vars( $this-&gt;data );
	}

	/**
	 * Makes private/protected methods readable for backward compatibility.
	 *
	 * @since 4.3.0
	 *
	 * @param string $name      Method to call.
	 * @param array  $arguments Arguments to pass when calling.
	 * @return mixed|false Return value of the callback, false otherwise.
	 */
	public function __call( $name, $arguments ) {
		if ( &#039;_init_caps&#039; === $name ) {
			return $this-&gt;_init_caps( ...$arguments );
		}
		return false;
	}

	/**
	 * Sets up capability object properties.
	 *
	 * Will set the value for the &#039;cap_key&#039; property to current database table
	 * prefix, followed by &#039;capabilities&#039;. Will then check to see if the
	 * property matching the &#039;cap_key&#039; exists and is an array. If so, it will be
	 * used.
	 *
	 * @since 2.1.0
	 * @deprecated 4.9.0 Use WP_User::for_site()
	 *
	 * @global wpdb $wpdb WordPress database abstraction object.
	 *
	 * @param string $cap_key Optional capability key
	 */
	protected function _init_caps( $cap_key = &#039;&#039; ) {
		global $wpdb;

		_deprecated_function( __METHOD__, &#039;4.9.0&#039;, &#039;WP_User::for_site()&#039; );

		if ( empty( $cap_key ) ) {
			$this-&gt;cap_key = $wpdb-&gt;get_blog_prefix( $this-&gt;site_id ) . &#039;capabilities&#039;;
		} else {
			$this-&gt;cap_key = $cap_key;
		}

		$this-&gt;caps = $this-&gt;get_caps_data();

		$this-&gt;get_role_caps();
	}

	/**
	 * Retrieves all of the capabilities of the user&#039;s roles, and merges them with
	 * individual user capabilities.
	 *
	 * All of the capabilities of the user&#039;s roles are merged with the user&#039;s individual
	 * capabilities. This means that the user can be denied specific capabilities that
	 * their role might have, but the user is specifically denied.
	 *
	 * @since 2.0.0
	 *
	 * @return bool[] Array of key/value pairs where keys represent a capability name
	 *                and boolean values represent whether the user has that capability.
	 */
	public function get_role_caps() {
		$switch_site = false;
		if ( is_multisite() &amp;&amp; get_current_blog_id() !== $this-&gt;site_id ) {
			$switch_site = true;

			switch_to_blog( $this-&gt;site_id );
		}

		$wp_roles = wp_roles();

		// Filter out caps that are not role names and assign to $this-&gt;roles.
		if ( is_array( $this-&gt;caps ) ) {
			$this-&gt;roles = array_filter( array_keys( $this-&gt;caps ), array( $wp_roles, &#039;is_role&#039; ) );
		}

		// Build $allcaps from role caps, overlay user&#039;s $caps.
		$this-&gt;allcaps = array();
		foreach ( (array) $this-&gt;roles as $role ) {
			$the_role      = $wp_roles-&gt;get_role( $role );
			$this-&gt;allcaps = array_merge( (array) $this-&gt;allcaps, (array) $the_role-&gt;capabilities );
		}
		$this-&gt;allcaps = array_merge( (array) $this-&gt;allcaps, (array) $this-&gt;caps );

		if ( $switch_site ) {
			restore_current_blog();
		}

		return $this-&gt;allcaps;
	}

	/**
	 * Adds role to user.
	 *
	 * Updates the user&#039;s meta data option with capabilities and roles.
	 *
	 * @since 2.0.0
	 *
	 * @param string $role Role name.
	 */
	public function add_role( $role ) {
		if ( empty( $role ) ) {
			return;
		}

		if ( in_array( $role, $this-&gt;roles, true ) ) {
			return;
		}

		$this-&gt;caps[ $role ] = true;
		update_user_meta( $this-&gt;ID, $this-&gt;cap_key, $this-&gt;caps );
		$this-&gt;get_role_caps();
		$this-&gt;update_user_level_from_caps();

		/**
		 * Fires immediately after the user has been given a new role.
		 *
		 * @since 4.3.0
		 *
		 * @param int    $user_id The user ID.
		 * @param string $role    The new role.
		 */
		do_action( &#039;add_user_role&#039;, $this-&gt;ID, $role );
	}

	/**
	 * Removes role from user.
	 *
	 * @since 2.0.0
	 *
	 * @param string $role Role name.
	 */
	public function remove_role( $role ) {
		if ( ! in_array( $role, $this-&gt;roles, true ) ) {
			return;
		}

		unset( $this-&gt;caps[ $role ] );
		update_user_meta( $this-&gt;ID, $this-&gt;cap_key, $this-&gt;caps );
		$this-&gt;get_role_caps();
		$this-&gt;update_user_level_from_caps();

		/**
		 * Fires immediately after a role as been removed from a user.
		 *
		 * @since 4.3.0
		 *
		 * @param int    $user_id The user ID.
		 * @param string $role    The removed role.
		 */
		do_action( &#039;remove_user_role&#039;, $this-&gt;ID, $role );
	}

	/**
	 * Sets the role of the user.
	 *
	 * This will remove the previous roles of the user and assign the user the
	 * new one. You can set the role to an empty string and it will remove all
	 * of the roles from the user.
	 *
	 * @since 2.0.0
	 *
	 * @param string $role Role name.
	 */
	public function set_role( $role ) {
		if ( 1 === count( $this-&gt;roles ) &amp;&amp; current( $this-&gt;roles ) === $role ) {
			return;
		}

		foreach ( (array) $this-&gt;roles as $oldrole ) {
			unset( $this-&gt;caps[ $oldrole ] );
		}

		$old_roles = $this-&gt;roles;

		if ( ! empty( $role ) ) {
			$this-&gt;caps[ $role ] = true;
			$this-&gt;roles         = array( $role =&gt; true );
		} else {
			$this-&gt;roles = array();
		}

		update_user_meta( $this-&gt;ID, $this-&gt;cap_key, $this-&gt;caps );
		$this-&gt;get_role_caps();
		$this-&gt;update_user_level_from_caps();

		foreach ( $old_roles as $old_role ) {
			if ( ! $old_role || $old_role === $role ) {
				continue;
			}

			/** This action is documented in wp-includes/class-wp-user.php */
			do_action( &#039;remove_user_role&#039;, $this-&gt;ID, $old_role );
		}

		if ( $role &amp;&amp; ! in_array( $role, $old_roles, true ) ) {
			/** This action is documented in wp-includes/class-wp-user.php */
			do_action( &#039;add_user_role&#039;, $this-&gt;ID, $role );
		}

		/**
		 * Fires after the user&#039;s role has changed.
		 *
		 * @since 2.9.0
		 * @since 3.6.0 Added $old_roles to include an array of the user&#039;s previous roles.
		 *
		 * @param int      $user_id   The user ID.
		 * @param string   $role      The new role.
		 * @param string[] $old_roles An array of the user&#039;s previous roles.
		 */
		do_action( &#039;set_user_role&#039;, $this-&gt;ID, $role, $old_roles );
	}

	/**
	 * Chooses the maximum level the user has.
	 *
	 * Will compare the level from the $item parameter against the $max
	 * parameter. If the item is incorrect, then just the $max parameter value
	 * will be returned.
	 *
	 * Used to get the max level based on the capabilities the user has. This
	 * is also based on roles, so if the user is assigned the Administrator role
	 * then the capability &#039;level_10&#039; will exist and the user will get that
	 * value.
	 *
	 * @since 2.0.0
	 *
	 * @param int    $max  Max level of user.
	 * @param string $item Level capability name.
	 * @return int Max Level.
	 */
	public function level_reduction( $max, $item ) {
		if ( preg_match( &#039;/^level_(10|[0-9])$/i&#039;, $item, $matches ) ) {
			$level = (int) $matches[1];
			return max( $max, $level );
		} else {
			return $max;
		}
	}

	/**
	 * Updates the maximum user level for the user.
	 *
	 * Updates the &#039;user_level&#039; user metadata (includes prefix that is the
	 * database table prefix) with the maximum user level. Gets the value from
	 * the all of the capabilities that the user has.
	 *
	 * @since 2.0.0
	 *
	 * @global wpdb $wpdb WordPress database abstraction object.
	 */
	public function update_user_level_from_caps() {
		global $wpdb;
		$this-&gt;user_level = array_reduce( array_keys( $this-&gt;allcaps ), array( $this, &#039;level_reduction&#039; ), 0 );
		update_user_meta( $this-&gt;ID, $wpdb-&gt;get_blog_prefix() . &#039;user_level&#039;, $this-&gt;user_level );
	}

	/**
	 * Adds capability and grant or deny access to capability.
	 *
	 * @since 2.0.0
	 *
	 * @param string $cap   Capability name.
	 * @param bool   $grant Whether to grant capability to user.
	 */
	public function add_cap( $cap, $grant = true ) {
		$this-&gt;caps[ $cap ] = $grant;
		update_user_meta( $this-&gt;ID, $this-&gt;cap_key, $this-&gt;caps );
		$this-&gt;get_role_caps();
		$this-&gt;update_user_level_from_caps();
	}

	/**
	 * Removes capability from user.
	 *
	 * @since 2.0.0
	 *
	 * @param string $cap Capability name.
	 */
	public function remove_cap( $cap ) {
		if ( ! isset( $this-&gt;caps[ $cap ] ) ) {
			return;
		}
		unset( $this-&gt;caps[ $cap ] );
		update_user_meta( $this-&gt;ID, $this-&gt;cap_key, $this-&gt;caps );
		$this-&gt;get_role_caps();
		$this-&gt;update_user_level_from_caps();
	}

	/**
	 * Removes all of the capabilities of the user.
	 *
	 * @since 2.1.0
	 *
	 * @global wpdb $wpdb WordPress database abstraction object.
	 */
	public function remove_all_caps() {
		global $wpdb;
		$this-&gt;caps = array();
		delete_user_meta( $this-&gt;ID, $this-&gt;cap_key );
		delete_user_meta( $this-&gt;ID, $wpdb-&gt;get_blog_prefix() . &#039;user_level&#039; );
		$this-&gt;get_role_caps();
	}

	/**
	 * Returns whether the user has the specified capability.
	 *
	 * This function also accepts an ID of an object to check against if the capability is a meta capability. Meta
	 * capabilities such as `edit_post` and `edit_user` are capabilities used by the `map_meta_cap()` function to
	 * map to primitive capabilities that a user or role has, such as `edit_posts` and `edit_others_posts`.
	 *
	 * Example usage:
	 *
	 *     $user-&gt;has_cap( &#039;edit_posts&#039; );
	 *     $user-&gt;has_cap( &#039;edit_post&#039;, $post-&gt;ID );
	 *     $user-&gt;has_cap( &#039;edit_post_meta&#039;, $post-&gt;ID, $meta_key );
	 *
	 * While checking against a role in place of a capability is supported in part, this practice is discouraged as it
	 * may produce unreliable results.
	 *
	 * @since 2.0.0
	 * @since 5.3.0 Formalized the existing and already documented `...$args` parameter
	 *              by adding it to the function signature.
	 *
	 * @see map_meta_cap()
	 *
	 * @param string $cap     Capability name.
	 * @param mixed  ...$args Optional further parameters, typically starting with an object ID.
	 * @return bool Whether the user has the given capability, or, if an object ID is passed, whether the user has
	 *              the given capability for that object.
	 */
	public function has_cap( $cap, ...$args ) {
		if ( is_numeric( $cap ) ) {
			_deprecated_argument( __FUNCTION__, &#039;2.0.0&#039;, __( &#039;Usage of user levels is deprecated. Use capabilities instead.&#039; ) );
			$cap = $this-&gt;translate_level_to_cap( $cap );
		}

		$caps = map_meta_cap( $cap, $this-&gt;ID, ...$args );

		// Multisite super admin has all caps by definition, Unless specifically denied.
		if ( is_multisite() &amp;&amp; is_super_admin( $this-&gt;ID ) ) {
			if ( in_array( &#039;do_not_allow&#039;, $caps, true ) ) {
				return false;
			}
			return true;
		}

		// Maintain BC for the argument passed to the &quot;user_has_cap&quot; filter.
		$args = array_merge( array( $cap, $this-&gt;ID ), $args );

		/**
		 * Dynamically filter a user&#039;s capabilities.
		 *
		 * @since 2.0.0
		 * @since 3.7.0 Added the `$user` parameter.
		 *
		 * @param bool[]   $allcaps Array of key/value pairs where keys represent a capability name
		 *                          and boolean values represent whether the user has that capability.
		 * @param string[] $caps    Required primitive capabilities for the requested capability.
		 * @param array    $args {
		 *     Arguments that accompany the requested capability check.
		 *
		 *     @type string    $0 Requested capability.
		 *     @type int       $1 Concerned user ID.
		 *     @type mixed  ...$2 Optional second and further parameters, typically object ID.
		 * }
		 * @param WP_User  $user    The user object.
		 */
		$capabilities = apply_filters( &#039;user_has_cap&#039;, $this-&gt;allcaps, $caps, $args, $this );

		// Everyone is allowed to exist.
		$capabilities[&#039;exist&#039;] = true;

		// Nobody is allowed to do things they are not allowed to do.
		unset( $capabilities[&#039;do_not_allow&#039;] );

		// Must have ALL requested caps.
		foreach ( (array) $caps as $cap ) {
			if ( empty( $capabilities[ $cap ] ) ) {
				return false;
			}
		}

		return true;
	}

	/**
	 * Converts numeric level to level capability name.
	 *
	 * Prepends &#039;level_&#039; to level number.
	 *
	 * @since 2.0.0
	 *
	 * @param int $level Level number, 1 to 10.
	 * @return string
	 */
	public function translate_level_to_cap( $level ) {
		return &#039;level_&#039; . $level;
	}

	/**
	 * Sets the site to operate on. Defaults to the current site.
	 *
	 * @since 3.0.0
	 * @deprecated 4.9.0 Use WP_User::for_site()
	 *
	 * @param int $blog_id Optional. Site ID, defaults to current site.
	 */
	public function for_blog( $blog_id = &#039;&#039; ) {
		_deprecated_function( __METHOD__, &#039;4.9.0&#039;, &#039;WP_User::for_site()&#039; );

		$this-&gt;for_site( $blog_id );
	}

	/**
	 * Sets the site to operate on. Defaults to the current site.
	 *
	 * @since 4.9.0
	 *
	 * @global wpdb $wpdb WordPress database abstraction object.
	 *
	 * @param int $site_id Site ID to initialize user capabilities for. Default is the current site.
	 */
	public function for_site( $site_id = &#039;&#039; ) {
		global $wpdb;

		if ( ! empty( $site_id ) ) {
			$this-&gt;site_id = absint( $site_id );
		} else {
			$this-&gt;site_id = get_current_blog_id();
		}

		$this-&gt;cap_key = $wpdb-&gt;get_blog_prefix( $this-&gt;site_id ) . &#039;capabilities&#039;;

		$this-&gt;caps = $this-&gt;get_caps_data();

		$this-&gt;get_role_caps();
	}

	/**
	 * Gets the ID of the site for which the user&#039;s capabilities are currently initialized.
	 *
	 * @since 4.9.0
	 *
	 * @return int Site ID.
	 */
	public function get_site_id() {
		return $this-&gt;site_id;
	}

	/**
	 * Gets the available user capabilities data.
	 *
	 * @since 4.9.0
	 *
	 * @return bool[] List of capabilities keyed by the capability name,
	 *                e.g. `array( &#039;edit_posts&#039; =&gt; true, &#039;delete_posts&#039; =&gt; false )`.
	 */
	private function get_caps_data() {
		$caps = get_user_meta( $this-&gt;ID, $this-&gt;cap_key, true );

		if ( ! is_array( $caps ) ) {
			return array();
		}

		return $caps;
	}
}
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