用PHP多維數組的結果回顯

Question

這是我的代碼：

<?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";
?>

當我嘗試查看運行此腳本的網頁時出現此錯誤：

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

是否有內置函數將此數組轉換為字符串，或者我有語法錯誤？

這是給teamtreehouse.com的，所以我想我缺少一些簡單的東西。

Answer 1

試試下面的代碼：

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

問題是您尚未創建任何命名為“ 0”的數組鍵