Insert multiple rows using form and PHP and (PDO with Prepared Statements)

Insert multiple rows using form and PHP and (PDO with Prepared Statements) My code in attachments Please I want to fix it to Insert multiple rows using form and PHP and (PDO with Prepared Statements) The source of my code below [login to view URL] (Very Important) Please I don't want complicated way of coding to fix my code I just want to very simple and secure way like example below becuase the example below didn't worked with me $rows = array($firstname, $lastname, $email); $stmt = $conn->prepare("INSERT INTO memo(firstname, lastname, email) VALUES (:firstname, :lastname, :email)"); foreach($rows as $key => $value){ $stmt->bindParam($key, $value); } $stmt -> execute(); Please note: My code is Prepared statements and When you fix it please keep my code as it is Prepared statements to be useful against SQL injections MySQL code below CREATE TABLE `memo` ( `id` bigint(20) NOT NULL AUTO_INCREMENT, `firstname` varchar(255) COLLATE utf8mb4_unicode_ci NOT NULL DEFAULT '', `lastname` varchar(255) COLLATE utf8mb4_unicode_ci NOT NULL DEFAULT '', `email` varchar(255) COLLATE utf8mb4_unicode_ci NOT NULL DEFAULT '', PRIMARY KEY (`id`) ) ENGINE=InnoDB AUTO_INCREMENT=1 DEFAULT CHARSET=utf8mb4 COLLATE=utf8mb4_unicode_ci; I'll pay only $10, if you are interested please contact me inside freelancer