Personne.php

<?php

class Personnage{

        public $nom;
        public $prenom;
        public $adresse;
        public $date;

        public function dire(){

            return $this->nom.' '.$this->prenom.' '.$this->adresse.' '.$this->date;
        }

        public function calcul(){

            $age= 2018 - $this->date;
            return ' '.$age. "ans";

        }

        public function setadresse($adresse){
            return $this->adresse=$adresse;

        }





}

try.php

<?php


require 'Personne.php';

$vince = new Personnage();

$vince->nom = "REI";
$vince->prenom = "Vincent";
$vince->adresse = "Wild code";
$vince->date = "1997";

echo $vince->dire();
echo $vince->calcul();

$vince->setadresse();