$this->key = 0;
}
public function current()
{
return $this->data[$this->key];
}
public function key()
{
return $this->key;
}
public function next()
{
$this->key++;
return true;
}
public function valid()
{
return isset($this->data[$this->key]);
}
}
$iterator = new BasicIterator();
$iterator->rewind();
do {
$key = $iterator->key();
$value = $iterator->current();
echo $key . ': ' . $value . PHP_EOL;
} while ($iterator->next() && $iterator->valid());
$iterator = new BasicIterator();
foreach ($iterator as $key => $value) {
echo $key . ': ' . $value . PHP_EOL;
}
{
$this->_key = 0;
}
public function current()
{
return $this->_list[$this->_key];
}
public function key()
{
return $this->_key;
}
public function next()
{
$this->_key++;
return true;
}
public function valid()
{
return isset($this->_list[$this->_key]);
}
}
$iterator = new BasicIterator($students);
$iterator->rewind();
do {
$key = $iterator->key();
$student = $iterator->current();
echo "{$key} : {$student}\n";
} while ($iterator->next() && $iterator->valid());
foreach ($iterator as $key => $student) {
echo "{$key} : {$student}\n";
}