WP_Filesystem_ftpsockets::__construct( array $opt = '' )

	public function __construct( $opt  = '' ) {
		$this->method = 'ftpsockets';
		$this->errors = new WP_Error();

		// Check if possible to use ftp functions.
		if ( ! @include_once( ABSPATH . 'wp-admin/includes/class-ftp.php' ) ) {
			return;
		}
		$this->ftp = new ftp();

		if ( empty($opt['port']) )
			$this->options['port'] = 21;
		else
			$this->options['port'] = (int) $opt['port'];

		if ( empty($opt['hostname']) )
			$this->errors->add('empty_hostname', __('FTP hostname is required'));
		else
			$this->options['hostname'] = $opt['hostname'];

		// Check if the options provided are OK.
		if ( empty ($opt['username']) )
			$this->errors->add('empty_username', __('FTP username is required'));
		else
			$this->options['username'] = $opt['username'];

		if ( empty ($opt['password']) )
			$this->errors->add('empty_password', __('FTP password is required'));
		else
			$this->options['password'] = $opt['password'];
	}