unreal_world_example.php

<?php
// I'm not fun to see your handling data masturbation.
// (I'm not intend DDD, too)
// Don't annoy me with such article. http://www.1x1.jp/blog/2014/06/how-to-scan-array-in-php.html

use Zend\Stdlib\Hydrator;

require_once 'vendor/autoload.php';

$usersData =  [
    [
        'id' => 1,
        'year' => 1993,
        'name' => 'Harada',
    ],
    [
        'id' => 2,
        'year' => 2001,
        'name' => 'Kato',
    ],
    [
        'id' => 3,
        'year' => 2009,
        'name' => 'Aoyama',
    ]
];

class User
{
    private $id, $year, $name;

    public function getYear()
    {
        return $this->year;
    }

    public function getEmployeeNumber()
    {
        return $this->year.$this->name;
    }
}


class UserSet extends ArrayIterator
{
    public function current()
    {
        $user = new User;        
        $hydrator = new Hydrator\Reflection();
        $hydrator->hydrate(parent::current(), $user);

        return $user;
    }
}

class UserRepository
{

    public function findByOverYear($year)
    {
        global $usersData;

        return new CallbackFilterIterator(new UserSet($usersData), function($user) use($year) { return $user->getYear() >= $year;});
    }
}

$users = (new UserRepository())->findByOverYear(2000);

?>
view
<?php foreach ($users as $user) :?>
    社員番号
    <?= htmlspecialchars($user->getEmployeeNumber()); ?>
    <br />
<?php endforeach; ?>