Server-side email already exist validation in PHP [duplicate] - php

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I have a form and fields are Name, Email, Password. Client-side validation is working perfectly. I am working on server-side validation.
I am getting the issue on else part. For testing, I added echo $email and I am getting the email id. Now that email id will check in the database is exists or not. If exist the display the error if not existing the display the not exist.
if(condition){}
elseif(condition){}
elseif(condition){}
elseif(condition){}
else{
echo $email; // here I am able to display the email id
$sql_check_email="SELECT email FROM register WHERE email =?";
$stmt = $conn->prepare($sql_check_email);
$stmt->bind_param("s", $email);
$stmt->execute();
$stmt->bind_result($email);
$rows = $stmt->fetch();
$total_rows = count($rows);
if( $total_rows > 0 ){
$_SESSION['email_error']= 'This email is alredy register with us';
header('location:register');
}else{
echo $email;// why my email id not displaying here?
echo $name;
echo $password;
echo $date_of_added;
echo"Not exist";
}

Answer 1

Your issue is:
$stmt->bind_result($email);
That line replaces variable with query result.
Just use another variable for results.
You also use fetch result wrong, it returns just true/false/null value of fetch state. Use bind_result binded variable to get your results.