【PHP/演習問題】配列[2]

$ php practice.php 0
Potatoes

$ php practice.php 1
Carrots

$ php practice.php 2
Potatoes

<?php

$index = $argv[1];

$foods = [];
$foods[] = 'Potatoes';
$foods[] = 'Carrots';
$foods[] = 'Onion';

echo  $foods[$index]."\n";

?>