Get Weather - Step 3 - Class

class WeatherService{
 
	public function WeatherService(){
		//some initialization...
	}
 
	public function getWeatherInfo($city){
 
		$res = shell_exec("./getWdr.sh {$city}");
 
		return $res;
	}
 
	public function convertFrToC($val){
		return (($val+40)*5/9)-40;
	}
 
}
 
 
$obj = new WeatherService;
$obj->getWeatherInfo("haifa");