title: calling python from PHP with arguments
body: <p>I have a python script on local machine sending data to PHP script on google cloud compute engine. I want my PHP script to send that data to another python script as arguments for processing. I am trying this,
  php script</p>
  
  <pre><code>&lt;?php
  $time = $_GET['time'];
  exec("python3 caller.py ".$time,$output);
  ar_dump($output);
  echo $output;
  ?&gt;
  </code></pre>