Linux::_filesystems PHP Method

    private function _filesystems()
    {
        $df_args = "";
        $hideFstypes = array();
        if (defined('PSI_HIDE_FS_TYPES') && is_string(PSI_HIDE_FS_TYPES)) {
            if (preg_match(ARRAY_EXP, PSI_HIDE_FS_TYPES)) {
                $hideFstypes = eval(PSI_HIDE_FS_TYPES);
            } else {
                $hideFstypes = array(PSI_HIDE_FS_TYPES);
            }
        }
        foreach ($hideFstypes as $Fstype) {
            $df_args .= "-x {$Fstype} ";
        }
        if ($df_args !== "") {
            $df_args = trim($df_args);
            //trim spaces
            $arrResult = Parser::df("-P {$df_args} 2>/dev/null");
        } else {
            $arrResult = Parser::df("-P 2>/dev/null");
        }
        foreach ($arrResult as $dev) {
            $this->sys->setDiskDevices($dev);
        }
    }