php fread buffer问题

Here is a small code on how to read the folder and download all its files:

You can also resume this code to (it will not copy directories):
   
while (false !== ($file = readdir($dirHandle))){    if ($file == "." || $file == "..")        continue;    echo "Copying file: $file\n";    if(!ssh2_scp_recv($connection, $remoteDir . $file, $localDir . $file))        echo "Could not download: ", $remoteDir, $file, "\n";}
   
If you do not use the full path on the remote folder it will not work:
   
opendir("ssh2.sftp://{$stream}{$remoteDir}")