title: Undefinded index: satuan in insertstoragedata.php
body: <p>I'm new in PHP and I'm getting this error:</p>
  
  <pre><code>Undefinded index: satuan in D:\xampp\htdocs\Belajar\data\insertstoragedata.php on line 11
  </code></pre>
  
  <p>I couldn't find any solution online, so maybe someone can help me.</p>
  
  <p>Here is the code:</p>
  
  <pre><code>$satuan             =   $_POST['satuan'];
  </code></pre>
  
  <p>thats the 11 line,can anyone help me??? I really can't understand why</p>