PHP致命錯誤：不能使用PDOStatement類型的對象作爲數組

Question

我想用此代碼發表評論頁面，但最終會出現錯誤。

下面是代碼：

$query = ("SELECT * FROM comment ORDER BY id DESC"); 

    $getquery = $connection->query($query); 

    while($rows = ($getquery)) 
    { 

     $id = $rows['id']; 
     $names = $rows['name']; 
     $comment = $rows['comment']; 

     echo $name . '<br/>' . $comment . '<br/>' . '<br/>' ; 
    } 

這裏是錯誤：

PHP Fatal error: Uncaught Error: Cannot use object of type PDOStatement as array in E:\utsdata\2T\2107982859\comment.php:61

其中線61：$id = $rows['id'];

Answer 1

1）更改

$getquery = $connection->query($query); 

要

$getquery = $connection->prepare($query); 

2）改變

while($rows = ($getquery)) 

要

while ($rows = $getquery->fetch(PDO::FETCH_BOTH)) { 

3）添加$getquery->execute();

更新的代碼

$query = ("SELECT * FROM comment ORDER BY id DESC"); 

$getquery = $connection->prepare($query); 
$getquery->execute(); 
while($result = $getquery->fetch(PDO::FETCH_BOTH);) 
{ 

    $id = $rows['id']; 
    $names = $rows['name']; 
    $comment = $rows['comment']; 

    echo $name . '<br/>' . $comment . '<br/>' . '<br/>' ; 
}