FTP
ftp_systype does NOT appear to be a reliable way to detect whether it is connected, as at least for a local network connection I have here to a Windows ftp server, it can succeed without a working connection (is it cached?). Don't know if this is specific to our ftp server - perhaps it doesn't behave well when it times out links.
ftp_systype
(PHP 4, PHP 5)
ftp_systype — Geeft het systeem type identificator terug van de FTP server
Beschrijving
string ftp_systype
( resource $ftp_stream
)
Geeft het systeem type terug, of FALSE als er een fout optreedt.
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User Contributed Notesftp_systype
jgbreezer at NOSPAM dot gmail dot com
07-Apr-2008 01:21
07-Apr-2008 01:21
Buckwheat469 at hotmail dot com
26-Jul-2006 06:41
26-Jul-2006 06:41
ftp_systype can be a good way of checking the state of a connection, since PHP doesn't have a better system to check the state of an ftp connection (is_connected would be nice).
if (!($type = ftp_systype($conn_id))) {
echo "FTP connection has failed! Trying again.\n";
$conn_id = ftp_connect($ftp_server);
$login_result = ftp_login($conn_id, $ftp_user, $ftp_pass);
}