$this->students[] = $student;
}
}
public function contains(Student $student)
{
foreach ($this->students as $s) {
if ($s->getId() == $student->getId()) {
return true;
}
}
return false;
}
public function getIterator()
{
return new CachingIterator($this->students->getIterator(), true);
}
}
$students = new StudentList();
$students->add(new Student('01234123', 'Joe'));
$students->add(new Student('00000014', 'Bob'));
$students->add(new Student('00000014', 'Foo'));
// The goal is to verify we can access the cached string value even if it was
// generated by a call to __toString(). To check this we need to access the
// iterator's __toString() method.
$it = $students->getIterator();
foreach ($it as $student) {
echo $it->__toString(), "\n";
}
?>
===DONE===
}
public function add(Student $student)
{
if (!$this->contains($student)) {
$this->students[] = $student;
}
}
public function contains(Student $student)
{
foreach ($this->students as $s) {
if ($s->getId() == $student->getId()) {
return true;
}
}
return false;
}
public function getIterator()
{
return $this->students->getIterator();
}
}
$students = new StudentList();
$students->add(new Student('01234123', 'Joe'));
$students->add(new Student('00000014', 'Bob'));
$students->add(new Student('00000014', 'Foo'));
foreach ($students as $student) {
echo $student, "\n";
}
?>
===DONE===
<?php
require 'Student.php';
require 'StudentList.php';
require 'StudentListIterator.php';
$student1 = new Student('Josay', 'Posay');
$student2 = new Student('Marty', 'McFly');
$student3 = new Student('Manuel', 'Valls');
$list = new StudentList();
$iterator = new StudentListIterator($list);
$list->addStudent($student1)->addStudent($student2)->addStudent($student3);
while ($iterator->hasNext()) {
echo 'ELEMENT COURANT : <br>';
echo '<pre>';
var_dump($iterator->getCurrent());
echo '</pre>';
echo 'ELEMENT SUIVANT: <br>';
echo '<pre>';
var_dump($iterator->getNext());
echo '</pre>';
}