title: How can I update PHP in Google Compute Engine from 5.6?
body: <p>THere's a complete lack of information about Google Compute Engine and upgrading PHP Versions (it all seems to refer to App Engine).</p>
  
  <p>Anyway, I'm running a Wordpress install on php 5.6, and need to upgrade to 7.3.</p>
  
  <p>I can confirm this in the console by <code>php -v</code> returning <code>5.6.17-0+deb8u1 (cli) (build: Jan 13 2016 09:10:12)</code></p>
  
  <p>Are there any decent instructions or guidelines on how to properly update this to the latest version of PHP?</p>