php数组打印下标及对应的值

<?php


        $arrayNum=array("一","二","三","四","五");

        $arrayNum[0]="七";
        //print_r($arrayNum[0]);
        
        $m=count($arrayNum);
        for($i=0;$i<$m;$i++){
            print_r($arrayNum[$i]);
            echo "<br/>";
        }
         echo "<br/>";
        foreach ($arrayNum as $aaa=>$bbb){//$aaa对应数组下标  $bbb对应数组的值
            echo $aaa."对应".$bbb;
            echo "<br/>";
        }
?>