//Calculer la durée de deux périodes public function GetTimeLong($time1,$time2,$format="i"){ $length = abs($time2 - $time1); if($format=="d") { $long = $this->GetFormatOne($length/86400)."jours"; }elseif ($format=="h"){     $long = $this->GetFormatOne($length/3600)." heures "; }elseif ($format=="i"){ } $long = $this->GetFormatOne($length/60)."Minutes"; }else{     $long = $length."Seconds"; } return $ long;}//Conserver une décimale function GetFormatOne($num){ $result = $format_num = sprintf("%.1f",$num); return $result;}