Question

帮我解决此错误

php脚本：

在包含$ stmt-> execute（$ params）的行中发现
错误

$username = filter_input(INPUT_POST, 'username', FILTER_SANITIZE_STRING);
$passwd = filter_input(INPUT_POST, 'passwd', FILTER_SANITIZE_STRING);

$sql = "SELECT * FROM users WHERE username=:username";
$stmt = $db->prepare($sql);

// bind parameter ke query
$params = array(
    ":username" => $username

);

$stmt->execute($params);

$user = $stmt->fetch(PDO::FETCH_ASSOC);

Answer 1

您可以尝试

$username = filter_input(INPUT_POST, 'username', FILTER_SANITIZE_STRING);
$passwd = filter_input(INPUT_POST, 'passwd', FILTER_SANITIZE_STRING);
$sql = "SELECT * FROM users WHERE username=:username";
$stmt = $db->prepare($sql);
$stmt->bindParam('username',$username);
$stmt->execute();
$user = $stmt->fetch(PDO::FETCH_ASSOC);

PHP：致命错误：未捕获的错误：在布尔值上调用成员函数execute（）

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