title: Does PHP do any parsing on the php.ini file?
body: <p>Running PHP Version 7.1.30 under RHEL 7.7.</p>
  
  <p>I'm wanting to bump memory_limit, but wasn't sure if I had the syntax right (i.e. 256M or 256MB).  So to start with I put a bad value "Hugo" in as the memory_limit setting.  The trouble with this is the result of phpinfo() (run under httpd) literally has the string "Hugo" in place, i.e.:</p>
  
  <p><a href="https://i.stack.imgur.com/OKoFN.png" rel="noreferrer"><img src="https://i.stack.imgur.com/OKoFN.png" alt="enter image description here"></a></p>
  
  <p>So this has me somewhat concerned that PHP doesn't actually do any sanity checking for the value(s).  (If the value provided was bad I would expect it to revert to a default, e.g.)</p>
  
  <p>Can anyone comment on this - in particular, how do you know whether PHP will be enforcing things (if an arbitary string can be provided).</p>