Daftar langsung otomatis login

<pre> &lt;?php session_start(); require 'php/koneksi.php';

if(isset($_SESSION['login'])){ header("Location: index.php"); }

function daftar(){ global $conn;

$date = date("Y-m-d H:i:s"); $nama = htmlspecialchars($_POST['nama']); $username = htmlspecialchars($_POST['username']); $email = htmlspecialchars($_POST['email']); $password = htmlspecialchars($_POST['password']); $password1 =htmlspecialchars($_POST['password1']);

//cek username sudah ada apa belum $result = mysqli_query($conn, "SELECT username FROM users WHERE username = '$username'"); if(mysqli_fetch_assoc($result)){ echo "&lt;script&gt; alert('Username Sudah Ada!'); &lt;/script&gt;"; return false; }

//cek konfirmasi password if($password !== $password1){ echo "&lt;script&gt; alert('Konfirmasi Password Tidak Sesuai!'); &lt;/script&gt;"; return false; }

//eksripsi password $password = password_hash($password, PASSWORD_DEFAULT);

$query = mysqli_query($conn, "INSERT INTO users (gabung,nama,username,email,password) VALUES ('$date','$nama','$username','$email','$password')");

return mysqli_affected_rows($conn);

}

if(isset($_POST['daftar'])){ if(daftar($_POST) &gt; 0){ echo "&lt;script&gt; alert('Anda Berhasil Mendaftar!'); &lt;/script&gt;"; header("Location: pilih_avatar.php"); }else{ echo mysqli_error($conn); } }

?&gt;

&lt;!DOCTYPE html&gt; &lt;html lang="en" dir="ltr"&gt; &lt;head&gt; &lt;meta charset="utf-8"&gt; &lt;title&gt;Daftar | Takon.ID&lt;/title&gt; &lt;link rel="stylesheet" href="css/daftar.css"&gt; &lt;/head&gt; &lt;body&gt;

<div class="logo">
  <a href="index.php"><img src="asset/logo/logo-takon.png" alt="Logo NgapakShop"></a>
</div>
<div class="bg">
    <img src="asset/bg/corak-register-mobile.png">
  </div>

<div class="kiri">
  <img src="asset/bg/daftar.png" alt="">
</div>

<div class="kanan">
  <div class="daftar">
    <h1>Daftar Takon.ID</h1>
    <p>Sudah Punya Akun ? <a href="login.php">Masuk</a> </p>
    <form action="" method="post">
      <label for="nama">Nama Lengkap</label>
      <input type="text" name="nama" id="nama">
      <label for="username">Username</label>
      <input type="text" name="username" id="username">
      <?php if(isset($usernameerror)){ ?>
        <h5>Username Sudah Ada!</h5>
      <?php } ?>
      <label for="email">Email</label>
      <input type="email" name="email" id="email">
      <label for="password">Password</label>
      <input type="password" name="password" id="password">
      <label for="password1">Konfirmasi Password</label>
      <input type="password" name="password1" id="password1">
      <?php if(isset($passworderror)){ ?>
        <h5>Password Tidak Sesuai</h5>
      <?php } ?>
      <button type="submit" name="daftar">Daftar</button>
    </form>
  </div>

</div>







<script type="text/javascript" src="js/jquery-3.3.1.min.js"></script>
<script type="text/javascript" src="js/script.js"></script>

&lt;/body&gt; &lt;/html&gt;

</pre>