title: How i get value from all dynamic textbox by using Class in php
body: <p>i have this dynamic textbox, and i want to get value by using class. by php</p>
  
  <pre><code>&lt;input id="op1" name="po1" class="key" size="50"&gt;
  &lt;input id="op2" name="po2" class="key" size="50"&gt;
  &lt;input id="op3" name="po3" class="key" size="50"&gt;
  &lt;input id="op4" name="po4" class="max" size="50"&gt;
  &lt;input id="op5" name="po5" class="key" size="50"&gt;
  &lt;input id="op6" name="po6" class="lol" size="50"&gt;
  &lt;input id="op6" name="po6" class="lol" size="50"&gt;
  </code></pre>
  
  <p>in this textbox there are "key", "max" and "lol" class 
  How i get value from this all dynamic textbox by using  only Class "Key" in php</p>