1) $maint_mode = intval($argv[1]); set_config('system', 'maintenance', $maint_mode); if($maint_mode) $mode_str = "maintenance mode"; else $mode_str = "normal mode"; echo "\n\tSystem set in $mode_str\n\n"; echo "Usage:\n\n"; echo "\tphp {$argv[0]} [1]\tSet the system in maintenance mode\n"; echo "\tphp {$argv[0]} 0 \tSet the system in normal mode\n\n";