1<?php 2class TestIterator2 implements Iterator 3{ 4 protected $data; 5 6 public function __construct(array $array) 7 { 8 $this->data = $array; 9 } 10 11 public function current() 12 { 13 return current($this->data); 14 } 15 16 public function next() 17 { 18 next($this->data); 19 } 20 21 public function key() 22 { 23 return key($this->data); 24 } 25 26 public function valid() 27 { 28 return key($this->data) !== null; 29 } 30 31 public function rewind() 32 { 33 reset($this->data); 34 } 35} 36