title: Get value from text field at a webserver ESP8266
body: <p>I've made a webserver with an esp8266. </p>
  
  <pre><code> sResponse  = 
  "&lt;p&gt;"
  "&lt;center&gt;"
  "&lt;h1&gt;ESP8266 Web Server&lt;/h1&gt;"
  "&lt;p&gt;Time &lt;input type='text' name='date_hh' size=2 autofocus&gt; hh &lt;input type='text' name='date_mm' size=2 autofocus&gt; mm &lt;input type='text' name='date_ss' size=2 autofocus&gt; ss&lt;/p&gt;"
  "&lt;p&gt;&lt;a href=\"?pin=FUNCTION1ON\"&gt;&lt;button&gt;Save&lt;/button&gt;&lt;/a&gt;"
  "&lt;/center&gt;"; 
  client.print(sResponse);
  </code></pre>
  
  <p>I get the following from the webserver:
  <a href="https://i.stack.imgur.com/7ftDq.png" rel="nofollow noreferrer"><img src="https://i.stack.imgur.com/7ftDq.png" alt="enter image description here"></a>
  .<br>
  If I click on the save button, I want to read the value of the three text fields. </p>
  
  <p>What do I have to do? Or, is there another (better) way to built up a webserver like this?</p>
  
  <p>Thanks in advance!</p>