题
我有以下功能及其总是返回false。它甚至没有尝试执行语句,我知道,因为我改变了$ query =“aldfjaf lkjfsk”,它并没有为我返回一个错误。任何建议?
class Mysql {
private $conn;
function __construct() {
$this->conn = new mysqli(DB_SERVER, DB_USER, DB_PASSWORD, DB_NAME) or
die('There was a problem connecting to the database.');
}
function verify_Username_and_Pass($un, $pwd) {
$query = "SELECT *
FROM user_table
WHERE login_username = ? AND login_password = ?";
if($stmt = $this->conn->prepare($query)) {
$stmt->bind_param('ss', $un, $pwd);
$stmt->execute();
if($stmt->fetch()) {
$stmt->close();
return true;
}
}
}
解决方案
您不检查错误,试试这个:
if($stmt->execute()) {
//code
}
else{
die($stmt->error);
}
或:
if($stmt = $this->conn->prepare($query)){
//code
}
else{
die($this->conn->error);
}
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