The constants below are defined by this extension, and will only be available when the extension has either been compiled into PHP or dynamically loaded at runtime.
FTP_ASCII 
    (integer)
   FTP_TEXT 
    (integer)
   FTP_BINARY 
    (integer)
   FTP_IMAGE 
    (integer)
   FTP_TIMEOUT_SEC 
    (integer)
   See ftp_set_option() for information.
The following constants were introduced in PHP 4.3.0.
FTP_AUTOSEEK 
    (integer)
   See ftp_set_option() for information.
FTP_AUTORESUME 
    (integer)
   Automatically determine resume position and start position for GET and PUT requests (only works if FTP_AUTOSEEK is enabled)
FTP_FAILED 
    (integer)
   Asynchronous transfer has failed
FTP_FINISHED 
    (integer)
   Asynchronous transfer has finished
FTP_MOREDATA 
    (integer)
   Asynchronous transfer is still active