<?php require_once 'Medical.php'; require_once 'Plant.php'; $plants = new Plant(); $plants = Plant::getPlants(); $plants[1]->insertIdOfMedical(1); $plants[2]->insertIdOfMedical(2); $plants[3]->insertIdOfMedical(3); $plants[3]->insertIdOfMedical(2); $medicals = Medical::getMedicals(); $medicals[1]->insertIdOfPlant(1); $medicals[2]->insertIdOfPlant(3); $medicals[3]->insertIdOfPlant(2); $medicals[3]->insertIdOfPlant(2); foreach ($medicals as $idOfMedicals => $medi) { echo "<br>" . $medi->getBenefit() . ': '; foreach ($medi->getIdOfPlant() as $medId) { echo $plants[$medId]->getName() . ' '; } } foreach ($plants as $idOfPlants => $pla) { echo "<br>" . $pla->getName() . ': '; foreach ($pla->getIdOfMedicals() as $plaId) { echo $medicals[$plaId]->getBenefit() . ' '; } }