<?phprequire_once('connect.php');$json = file_get_contents('jsonverisi.json');$data = json_decode($json, true);foreach ($data as $user) {    $firstname = $user['firstname'];    $lastname = $user['lastname'];    $gender = $user['firstname'];    $username = $user['username'];    $st = mysqli_prepare($connection, 'INSERT INTO users(firstname, lastname, gender, username) VALUES (?, ?, ?, ?)');        mysqli_stmt_bind_param($st, 'ssss', $firstname, $lastname, $gender, $username);*    mysqli_stmt_execute($st);}?>