title: if <img src=""> but no image
body: <p>When trying to display image that's adress doesn't exist you will see default browsers "no image" badge.</p>
  
  <p>How to change it to default "no-image.png" placeholder?</p>
  
  <pre><code>echo "&lt;img src='http://www.google.com/trolol.png'&gt;"; //for example
  </code></pre>