用PHP多维数组的结果回显

Question

这是我的代码：

<?php
$contacts = array($alena = array("name" => "Alena Holligan",
                                 "email" => "alena.holligan@teamtreehouse.com"), 
                  $dave = array("name" => "Dave McFarland",
                                "email" => "dave.mcfarland@teamtreehouse.com"), 
                  $treasure = array("name" => "Treasure Porth",
                                    "email" => "treasure.porth@teamtreehouse.com"), 
                  $andrew = array("name" => "Andrew Chalkley",
                                  "email" => "andrew.chalkley@teamtreehouse.com")
                 );

    echo "<ul>\n";
names.
    echo "<li>$contacts[0][name]</li>\n";
    echo "</ul>\n";
?>

当我尝试查看运行此脚本的网页时出现此错误：

Notice: Array to string conversion in index.php on line 15
Array[name]

是否有内置函数将此数组转换为字符串，或者我有语法错误？

这是给teamtreehouse.com的，所以我想我缺少一些简单的东西。

Answer 1

试试下面的代码：

<?php echo $contacts[$alena]['name']; ?>

问题是您尚未创建任何命名为“ 0”的数组键