03-29-2012
to check if a remote server is up
I need to check if a remote server is up before i send a file to it through FTP. I thought of using "ping" command to check it. But the problem is, my script needs to run from 2 different servers, one is Solaris and other is HP-UX. And ping works in different way in each of them
when I do - ping "IPaddress"
In Solaris, it gives me IPaddress is alive
But in HP-UX, it keeps on pinging the remote server by sending packets and doesn't break until I press ctrl+C.
Is there any common way, I can check if a remote server is up from any OS???
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FTP_GET(3) 1 FTP_GET(3)
ftp_get - Downloads a file from the FTP server
SYNOPSIS
bool ftp_get (resource $ftp_stream, string $local_file, string $remote_file, int $mode, [int $resumepos])
DESCRIPTION
ftp_get(3) retrieves a remote file from the FTP server, and saves it into a local file.
PARAMETERS
o $ftp_stream
- The link identifier of the FTP connection.
o $local_file
- The local file path (will be overwritten if the file already exists).
o $remote_file
- The remote file path.
o $mode
- The transfer mode. Must be either FTP_ASCII or FTP_BINARY.
o $resumepos
- The position in the remote file to start downloading from.
RETURN VALUES
Returns TRUE on success or FALSE on failure.
EXAMPLES
Example #1
ftp_get(3) example
<?php
// define some variables
$local_file = 'local.zip';
$server_file = 'server.zip';
// set up basic connection
$conn_id = ftp_connect($ftp_server);
// login with username and password
$login_result = ftp_login($conn_id, $ftp_user_name, $ftp_user_pass);
// try to download $server_file and save to $local_file
if (ftp_get($conn_id, $local_file, $server_file, FTP_BINARY)) {
echo "Successfully written to $local_file
";
} else {
echo "There was a problem
";
}
// close the connection
ftp_close($conn_id);
?>
SEE ALSO
ftp_pasv(3), ftp_fget(3), ftp_nb_get(3), ftp_nb_fget(3).
PHP Documentation Group FTP_GET(3)