PDO 错误:"SQLSTATE[HY000]:一般错误更新数据库时-php问题

PDO error: quot; SQLSTATE[HY000]: General error quot; When updating database(PDO 错误:quot;SQLSTATE[HY000]:一般错误更新数据库时)

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问题描述

我在使用 PDO 更新数据库时遇到错误.我是 PDO 的新手，所以问题可能很小，我只是不明白.这个错误很有趣，命令运行良好，数据库确实得到了更新.但它仍然向我返回一个错误.

I am getting an error when updating a database using PDO. I am new to PDO so maybe the problem is a small one and I just don't understand. Funny thing about the error, the command works fine and the database does actually get updated. But it still returns an error back at me.

代码:

try {
    $stmt = $pdo->prepare("UPDATE $page SET $section = :new_content WHERE $section = '$old_content'");
    $stmt->execute(array(
        'new_content' => $new_content
    ));
    $result = $stmt->fetchAll();
    echo "Database updated!";
}
catch(PDOException $e) {
    echo 'ERROR UPDATING CONTENT: ' . $e->getMessage();
}

错误:错误更新内容:SQLSTATE[HY000]:一般错误

Error: ERROR UPDATING CONTENT: SQLSTATE[HY000]: General error

我真的不知道问题出在哪里，因为它非常空洞，而且我找不到任何有同样问题的人.

I literally have no idea where the problem could be because its very vaque and I haven't been able to find anyone with the same problem.

推荐答案

你不使用 fetchAll()，如

You do not use fetchAll(),as in

$result = $stmt->fetchAll();

带有更新或插入查询.删除此语句应该可以解决问题.

with update or insert queries. Removing this statement should rectify the problem.

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