title: image button in php
body: <p>I am trying to use image for button as:</p>
  
  <pre><code>&lt;button name="foo" type="button" value="bar" onclick="AjaxResponse()" &gt; &lt;img src="img.png"&gt; &lt;/button&gt;
  </code></pre>
  
  <p>or</p>
  
  <pre><code> &lt;button name="foo" type="button" value="bar" onclick="AjaxResponse()" img src="img.png" /&gt; 
  </code></pre>
  
  <p>Both does not show button with image. It just shows small icon, which performs correct operation on click. But why the image could not be seen?</p>