ارسال اطلاعات به دیتابیس

سلام

من در یک پروژه ای قصد دارم که اطلاعاتی رو از سمت مخاطب به سمت سرور ارسال کنم ولی متاسفانه قسمت ارسال دارای ایراد هستش.

از شما خواهشنمدام که امکانش هست راهنمایی بفرمایید

پیشاپیش ممنون.

 <?php
include_once('../includes/connect_database.php');
include('../variables/variables.php');

// get data from android app
$name = $_POST['name'];
$alamat = $_POST['alamat'];
$name2 = $_POST['name2'];
$date_n_time = $_POST['date_n_time'];
$phone = $_POST['phone'];
$order_list = $_POST['order_list'];
$comment = $_POST['comment'];

$sql_query = "set names 'utf8'";
$stmt = $connect->stmt_init();
if($stmt->prepare($sql_query)) {
    // Execute query
    $stmt->execute();
    // store result
    $stmt->close();
}

// insert data into reservation table
$sql_query = "INSERT INTO tbl_reservation(Name, Alamat, Number_of_people, Date_n_Time, Phone_number, Order_list, Comment)
					VALUES (?, ?, ?, ?, ?, ?, ?)";

$stmt = $connect->stmt_init();
if($stmt->prepare($sql_query)) {
    // Bind your variables to replace the ?s
    $stmt->bind_param('sssssss',
        $name,
        $alamat,
        $name2,
        $date_n_time,
        $phone,
        $order_list,
        $comment
    );
    // Execute query
    $stmt->execute();
    $result = $stmt->affected_rows;
    // store result
    //$result = $stmt->store_result();
    $stmt->close();
}

// get admin email from user table
$sql_query = "SELECT Email
			FROM tbl_user";

$stmt = $connect->stmt_init();
if($stmt->prepare($sql_query)) {
    // Execute query
    $stmt->execute();
    // store result
    $stmt->store_result();
    $stmt->bind_result($email);
    $stmt->fetch();
    $stmt->close();
}

// if new reservation has been successfully added to reservation table
// send notification to admin via email
if($result){
    $to = $email;
    $subject = $reservation_subject;
    $message = $reservation_message;
    $from = $admin_email;
    $headers = "From:" . $from;
    mail($to,$subject,$message,$headers);
    echo "OK";
}else{
    echo "Failed";
}

include_once('../includes/close_database.php');
?>