$query =   "select    fs.tablespace_name, (df.totalspace - fs.freespace),fs.freespace, df.totalspace,
         round(100 * (fs.freespace / df.totalspace))
        from (select tablespace_name, round(sum(bytes) / 1048576) TotalSpace
           from dba_data_files
        group by tablespace_name) df, (select    tablespace_name, round(sum(bytes) / 1048576) FreeSpace 
from dba_free_space
        group by tablespace_name) fs where df.tablespace_name = fs.tablespace_name";

  $s = OCIParse($c, $query); 
  OCIExecute($s, OCI_DEFAULT);
    while (OCIFetch($s)) {
	echo ociresult($s, 1) . " ";
	echo ociresult($s, 2) . " ";
	echo ociresult($s, 3) . " ";
	echo ociresult($s, 4) . " ";
	echo ociresult($s, 5) . " ";
	echo ociresult($s, 6) . " ";
	[B]$size =  ociresult($s, 6);[/B]
	echo ociresult($s, 7);
	echo "<br>";
    } 
OCILogoff($c);