<?php require 'Human.php'; require 'Child.php'; require 'Father.php'; require 'Mother.php'; require 'Family.php'; $mother = new Mother('Martine', 'F', 34); $father = new Father('Jean', 'M', 35); $child = new Child('Josay', 'M', 12); $family = new Family(); $family->addMember($mother)->addMember($father)->addMember($child); echo '<pre>'; var_dump($family); echo '</pre>'; echo 'Nombre : ' . $family->getCount(); echo '<br>'; echo 'Somme de l\'age : ' . $family->getAgeSum();