I can only insert one single data into my database after that I refresh and try to insert another data it will only show 'Unable to register! Please Try Again!' below is my code what's the problem? :
<?php
include "conn.php"; // connection
$username = $_POST['user'];
$password = $_POST['pass'];
$confirmpassword = $_POST['confirmpass'];
$email = $_POST['email'];
if($password !== $confirmpassword) { echo "<script>alert('Password and confirmed password not same!'); ";
die("window.history.go(-1);</script>"); }
//write the insert sql query
$sql = "Insert into users (User_Name, User_Password, User_Email, User_Last_login ) VALUES ('$username','".md5($password)."','$email','".date("Y-m-d H:i:s")."');";
//to check the query executed or not
mysqli_query($conn, $sql);
if(mysqli_affected_rows($conn) <=0)
{
die ("<script>alert('Unable to register! \
Please Try Again!');window.history.go(-1);</script>");
}
echo "<script>alert('Register Successfully!Please login now!');window.history.go(-1);</script>";
echo "window.location.href='login.html';</script>";
?>
I have try to solve this for few hours tried solution from other question but still not working, I still only can insert 1 data after that it keep shows Unable to register! Please Try Again!