PHP设计模式之迭代器模式浅析（迭代器iterator remove）太疯狂了

<?php
class MyIterator implements Iterator
{
private $position=0;
private $array=array(
“firstelement”,
“secondelement”,
“lastelement”,
);
public function __construct()
{
$this->position=0;
}
function rewind()
{
$this->position=0;
}
function current()
{
return $this->array[$this->position];
}
function key()
{
return $this->position;
}
function next()
{
++$this->position;
}
function valid()
{
return isset($this->array[$this->position]);
}
}) ? “True\n” : “False\n”;