我正在编写PHP，这是我的代码：
public function storeUser($name, $email, $password) {
$uuid = uniqid('', true);
$hash = $this->hashSSHA($password);
$encrypted_password = $hash["encrypted"]; // encrypted password
$salt = $hash["salt"]; // salt
$stmt = $this->conn->prepare("INSERT INTO users(unique_id, name, email, encrypted_password, salt, created_at) VALUES(?, ?, ?, ?, ?, NOW())");
$stmt->bind_param("sssss", $uuid, $name, $email, $encrypted_password, $salt);
$result = $stmt->execute();
$stmt->close();
// check for successful store
if ($result) {
$stmt = $this->conn->prepare("SELECT * FROM users WHERE email = ?");
$stmt->bind_param("s", $email);
$stmt->execute();
$user = $stmt->bind_result()->fetch_assoc();
$stmt->close();
return $user;
} else {
return false;
}
}
但是我收到此错误和警告，不知道如何解决：
PHP 致命错误：在文件中的非对象上调用成员函数 fetch_assoc(.php
文件.php中 mysqli_stmt：：bind_result(( 的参数计数错误。
选项 1 如果你安装了 MySQL 本机驱动程序 (mysqlnd(，你可以使用
$res = $stmt->get_result();
$user = $res->fetch_array(MYSQLI_ASSOC);
此处提供示例的详细信息：http://www.pontikis.net/blog/dynamically-bind_param-array-mysqli
选项 2 如果没有，则将其与 bind_result 一起使用，更多信息在这里bind_result：http://php.net/manual/en/mysqli-stmt.bind-result.php
// IMPOTANT: you need to change your sql query to select
// only columns which you need unique_id, name, email ...
$stmt = $this->conn->prepare("SELECT unique_id, name, email FROM users WHERE email = ?");
$stmt->bind_param("s", $email);
$stmt->execute();
// list here variables with exact amount of columns which you selecting in your query
$stmt->bind_result($row_user_id, $row_user_name, $row_user_email);
// In case you expect 1 row
$stmt->fetch();
var_dump($row_user_id, $row_user_name, $row_user_email);// to see result
$user = array(
'id' => $row_user_id,
'name' => $row_user_name,
'email' => $row_user_email,
);
// In case you expect many rows use while
$users = array();
while ($stmt->fetch())
{
$users[] = array(
'id' => $row_user_id,
'name' => $row_user_name,
'email' => $row_user_email,
);
}
var_dump( $users );// to see result
$user = $stmt->bind_result()->fetch_assoc();
bind_result()返回bool .您正在尝试使用此语法调用bool::fetch_assoc()。