Question

我尝试使用PDO在MySQL中更新数据。

我已设置下面的代码，但收到错误

SQLSTATE [42000]：语法错误或访问冲突：1064＆gt;您的SQL语法中有错误;检查与您的MySQL服务器版本相对应的手册＆gt;正确的语法，以便使用接近＆＃39;（h1，text）值（＆＃39; Blah blah＆＃39; at line 1

if (isset($_POST['Submit']))://if admin wants to edit category

$h1 = $_POST['h1'];
$text = $_POST['text'];

$servername = "localhost";
$username = "user";
$password = "password";
$dbname = "dbname";

try {
$conn = new PDO("mysql:host=$servername;dbname=$dbname", $username, $password);
// set the PDO error mode to exception
$conn->setAttribute(PDO::ATTR_ERRMODE, PDO::ERRMODE_EXCEPTION);

// Prepare statement
$stmt = $conn->prepare('UPDATE sections (h1, text) values (:h1, :text) WHERE id=1');
$stmt->bindParam(':h1', $h1);   
$stmt->bindParam(':text', $text);   
// execute the query
$stmt->execute();

// echo a message to say the UPDATE succeeded
echo $stmt->rowCount() . " records UPDATED successfully";
}
catch(PDOException $e)
{
echo $sql . "<br>" . $e->getMessage();
}

$conn = null;

Answer 1

更新语法应为：

UPDATE table_name SET `field1` = new-value1, `field2` = new-value2.

您的查询应该是：

UPDATE sections SET `h1` = :h1, `text` = :text WHERE id = 1;

请参阅Update query syntax

Answer 2

text是mysql中的reserved word。

按如下所示编写查询： -

UPDATE sections SET `h1` = :h1, `text` = :text WHERE id = 1;

希望它会对你有所帮助:)。

PHP使用PDO在MySQL中更新数据

2 个答案: