WP_Filesystem_FTPext::__construct( array $opt = null )

61	public function __construct( $opt = null ) {62		$this->method  = 'ftpext';63		$this->errors  = new WP_Error();64		$this->options = array(65			'port'     => 21,66			'hostname' => '',67			'username' => '',68			'password' => '',69			'ssl'      => false,70		);71 72		// Check if possible to use ftp functions.73		if ( ! extension_loaded( 'ftp' ) ) {74			$this->errors->add( 'no_ftp_ext', __( 'The ftp PHP extension is not available' ) );75			return;76		}77 78		// This class uses the timeout on a per-connection basis, others use it on a per-action basis.79		if ( ! defined( 'FS_TIMEOUT' ) ) {80			define( 'FS_TIMEOUT', 4 * MINUTE_IN_SECONDS );81		}82 83		if ( ! is_array( $opt ) ) {84			$opt = array();85		}86 87		if ( ! empty( $opt['port'] ) ) {88			$this->options['port'] = $opt['port'];89		}90 91		if ( empty( $opt['hostname'] ) ) {92			$this->errors->add( 'empty_hostname', __( 'FTP hostname is required' ) );93		} else {94			$this->options['hostname'] = $opt['hostname'];95		}96 97		// Check if the options provided are OK.98		if ( empty( $opt['username'] ) ) {99			$this->errors->add( 'empty_username', __( 'FTP username is required' ) );100		} else {101			$this->options['username'] = $opt['username'];102		}103 104		if ( empty( $opt['password'] ) ) {105			$this->errors->add( 'empty_password', __( 'FTP password is required' ) );106		} else {107			$this->options['password'] = $opt['password'];108		}109 110		if ( isset( $opt['connection_type'] ) && 'ftps' === $opt['connection_type'] ) {111			$this->options['ssl'] = true;112		}113	}