title: Sound not working from shell script on rpi3
body: <p>I have a raspberry pi 3 hosting a simple little local server, all this server does is display a hyperlink to activate a shell script which plays a sound.
  When said button is clicked it goes to the page, but the sound is not played though the raspberry pi. How would I go about fixing this?</p>
  
  <p>index.php</p>
  
  <pre><code>&lt;?php
  if ($_GET['run']) {
  shell_exec("/var/www/html/Alarm.sh");
  }
  ?&gt;
  &lt;a href="?run=true"&gt;Click Me!&lt;/a&gt;
  </code></pre>
  
  <p>Alarm.sh</p>
  
  <pre><code>python /home/pi/alarm.py
  </code></pre>
  
  <p>Any idea what I have done wrong?</p>