<?php
$objStudent = StudentFactory::getStudent(12345);
$itCourses = $objStudent->courses->getIterator();
for($itCourses->rewind(); $itCourses->hasMore(); $itCourses->next()) {
   $key = $itCourses->key();
   $objCourse = $itCourses->current();
   print $objStudent . ' jest zapisany na kurs ' . $objCourse . "<br>\n";
}
?>