* @param WP_User  $user    The user object.
		 */
		$capabilities = apply_filters( 'user_has_cap', $this->allcaps, $caps, $args, $this );

		// Everyone is allowed to exist.
		$capabilities['exist'] = true;

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

		// 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 'level_' 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 'level_' . $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 = '' ) {
		_deprecated_function( __METHOD__, '4.9.0', 'WP_User::for_site()' );

		$this->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 = '' ) {
		global $wpdb;

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

		$this->cap_key = $wpdb->get_blog_prefix( $this->site_id ) . 'capabilities';

		$this->caps = $this->get_caps_data();

		$this->get_role_caps();
	}

	/**
	 * Gets the ID of the site for which the user's capabilities are currently initialized.
	 *
	 * @since 4.9.0
	 *
	 * @return int Site ID.
	 */
	public function get_site_id() {
		return $this->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( 'edit_posts' => true, 'delete_posts' => false )`.
	 */
	private function get_caps_data() {
		$caps = get_user_meta( $this->ID, $this->cap_key, true );

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

		return $caps;
	}
}
<br />
<b>Fatal error</b>:  require(): Failed opening required '/var/www/html/helitower.com.br/web/wp-includes/rest-api/endpoints/class-wp-rest-posts-controller.php' (include_path='.:/usr/share/pear') in <b>/var/www/html/helitower.com.br/web/wp-settings.php</b> on line <b>282</b><br />
<br />
<b>Fatal error</b>:  Uncaught Error: Call to a member function set() on null in /var/www/html/helitower.com.br/web/wp-includes/l10n.php:854
Stack trace:
#0 /var/www/html/helitower.com.br/web/wp-includes/l10n.php(957): load_textdomain('default', '/var/www/html/h...', 'pt_BR')
#1 /var/www/html/helitower.com.br/web/wp-includes/class-wp-fatal-error-handler.php(49): load_default_textdomain()
#2 [internal function]: WP_Fatal_Error_Handler-&gt;handle()
#3 {main}
  thrown in <b>/var/www/html/helitower.com.br/web/wp-includes/l10n.php</b> on line <b>854</b><br />