sql repare php

1$servername = "localhost";
2$username = "username";
3$password = "password";
4$dbname = "myDB";
5
6$conn = new mysqli($servername, $username, $password, $dbname);
7
8if ($conn->connect_error) {
9  die("Connection failed: " . $conn->connect_error);
10}
11
12$stmt = $conn->prepare("INSERT INTO MyGuests (firstname, lastname, email) VALUES (?, ?, ?)");
13$stmt->bind_param("sss", $firstname, $lastname, $email);
14
15$firstname = "John";
16$lastname = "Doe";
17$email = "john@example.com";
18$stmt->execute();
19
20echo "New records created successfully";
21
22$stmt->close();
23$conn->close();

1$array_of_values = array( "Brasil", "Argentina" );
2$types = "ss";
3$mysqli_stmt->bind_param( $types, ...$array_of_values );
4