老师思路是不是没有问题

<?php

//定义数组

$num=array(

    'cardinal'=>['one','two','three','four','five','six'],

'ordinal'=>['first','second','third','fourth','fifth','sixth']

);

print_r($num);

echo "<br>";

//请在这里使用foreach遍历数组

foreach($num as $val){

    foreach($val as $key=>$val2){

        echo $key."=>".$val2."<br>";

    }

}

echo "<hr>";

foreach($num as $ccc){

    while(list($d,$v)=each($ccc)){

        echo $d."=>".$v."<br>";

    }

}

?>