예제 #1
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    }
    public function fetch()
    {
        $val = each($this->arr);
        if ($val) {
            return $val['value'];
        } else {
            reset($this->arr);
            return false;
        }
    }
}
//variant 1
$ob = new Phrase($str);
echo "<ul>";
while (($word = $ob->fetch()) !== false) {
    echo "<li>" . $word . "</li>";
}
echo "</ul>";
//step 2
class Phrase2 implements Iterator
{
    public $arr;
    public function __construct($str)
    {
        $this->arr = explode(" ", $str);
        $this->n = count($this->arr);
    }
    public function rewind()
    {
        $this->k = 0;