(PHP 4 >= 4.0.7, PHP 5)
disk_total_space — Returns the total size of a directory
Given a string containing a directory, this function will return the total number of bytes on the corresponding filesystem or disk partition.
A directory of the filesystem or disk partition.
Returns the total number of bytes as a float.
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:");
?>
Note: This function will not work on remote files as the file to be examined must be accessible via the servers filesystem.