title: $_POST is empty, form
body: <p><code>$_POST</code> is empty before form, I don't know why.</p>
  <pre><code>        &lt;form method = &quot;POST&quot;&gt;
          &lt;div class = &quot;formDiv&quot;&gt;
              &lt;label for=&quot;name&quot;&gt;name&lt;/label&gt;
              &lt;input class=&quot;name&quot; id=&quot;name&quot;&gt;
          &lt;/div&gt;
          &lt;div class = &quot;button1&quot;&gt;
              &lt;input type=&quot;submit&quot; value=&quot;submit&quot;&gt;
          &lt;/div&gt;
      &lt;/form&gt;
  </code></pre>
  <p>PHP:</p>
  <pre><code>var_dump($_POST);
  </code></pre>