WP_Filesystem_FTPext::exists( string $path ): bool

481	public function exists( $path ) {482		/*483		 * Check for empty path. If ftp_nlist() receives an empty path,484		 * it checks the current working directory and may return true.485		 *486		 * See https://core.trac.wordpress.org/ticket/33058.487		 */488		if ( '' === $path ) {489			return false;490		}491 492		$list = ftp_nlist( $this->link, $path );493 494		if ( empty( $list ) && $this->is_dir( $path ) ) {495			return true; // File is an empty directory.496		}497 498		return ! empty( $list ); // Empty list = no file, so invert.499	}