practice1/task3/index.php

<?php

ini_set('error_reporting', E_ALL);
ini_set('display_errors', 1);
ini_set('display_startup_errors', 1);

include_once 'Even.php';

$even = new Even();
$even->number = 7;
$even->searchNumber();
$even->number = 10;
$even->searchNumber();