100-PHP二维数组的元素输出三

<?php
    $stu=array(array(76,87,68),
                array(65,89,95),
                array(90,80,66),
                array(90,95,65));        //定义一个二维数组
    foreach($stu as $k=>$v){        //遍历数组
        echo "元素{$k}中的元素：<br />";
        foreach($v as $k=>$v){
            echo "  {$k}=>{$v}";        //输出数组的索引/值对
        }
        echo ‘<br />‘;
    }
?>