Description
float 
disk_total_space ( string directory )
     Given a string containing a directory, this function will return
     the total number of bytes on the corresponding filesystem or disk
     partition.
    
     
Example 1. disk_total_space() example 
<?php // $df contains the total number of bytes available on "/" $df = disk_total_space("/");
  // On Windows: disk_total_space("C:"); disk_total_space("D:"); ?>
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    Note: This function will not work on 
remote files as the file to
be examined must be accessible via the servers filesystem.
     See also disk_free_space()