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
    (int)
   FTP_AUTOSEEK
    (int)
   See ftp_set_option() for information.
FTP_AUTORESUME
    (int)
   Automatically determine resume position and start position for GET and PUT requests (only works if FTP_AUTOSEEK is enabled)
FTP_FAILED
    (int)
   Asynchronous transfer has failed
FTP_FINISHED
    (int)
   Asynchronous transfer has finished
FTP_MOREDATA
    (int)
   Asynchronous transfer is still active
FTP_TEXT
    (int)
   Alias of FTP_ASCII.
FTP_BINARY
    (int)
   FTP_IMAGE
    (int)
   Alias of FTP_BINARY.
FTP_TIMEOUT_SEC
    (int)
   See ftp_set_option() for information.
FTP_USEPASVADDRESS
    (int)
   See ftp_set_option() for information.
