SysInfo.php
public static function getDiskUsage()
    {
        $result = [];
        $lines = explode("\n", trim(shell_exec('df')));
        array_shift($lines);
        foreach ($lines as &$line) {
            if (0 === strpos($line, '/')) {
                $result[] = explode("\t", $line);
            }
        }

        return $result;
    }
public static function getDiskUsage()
    {
        $result = [];
        $lines = explode("\n", trim(shell_exec('df')));
        array_shift($lines);
        foreach ($lines as &$line) {
            if (0 === strpos($line, '/')) {
                $result[] = explode("\t", $line);
            }
        }

        return $result;
    }
Get disk usage on UNIX OS

@return array Partitions space usage. Every partition (array element) consist of:
<ul>
<li>0 - Device</li>
<li>1 - Capacity in kB</li>
<li>2 - Used kB</li>
<li>3 - Available Kb</li>
<li>4 - Use percentage</li>
<li>5 - Mount point</li>
</ul>
@static