foreachで最後をとる

<?php
$cnt = 1;

$length = count($array);



$array = [0 => "aaa",

    1 => "bbb",

    2 => "ccc",

    3 => "bbb",

    4 => "ddd",

    5 => "ccc"];

foreach($array as $k=>$v){

    if($cnt < $length){

        print "$k=>$v まだまだ\n";

    }else{

        print "$k=>$v 最後\n";

    }

    $cnt++;

}