PHP fopen question, not openbasedir

[cyberdude]

I am using this code to open a file from a ftp site using php i was using this code on Plesk 7.5 and it was working perfectly but now it just opens half of the file and does not generate any error. Both the sites are in the same server

here is the code

  $domain_folder="ftp://$ftpusr:$ftppwd@$ftpadd/httpdocs/files/";
  $filename = $domain_folder."file2.txt";
  
  $fp = fopen ($filename, "r") or die("Did not work");
  $line=fread($fp,100000);
  echo $line;
  fclose($fp);

Please help what am i doing wrong here