Is there a way to reference a variable from an external document with PHP? -

I want to use PHP, but I need to know how to get a variable from an external document ( External.php) and use it in a function in a PHP document (internal.php). I was thinking something like this:

Code for external code

  $ variable = "true";  

internal.php for code

  if ($ GETFROM {'/ external.php'} ['variable']) "This worked" Echo;  

Is it possible to do something like this?

If you want to include a specific value directly from an innerfile file in your current document, you You can also include the PHP file that gives value.

For example:

inc.php

  & lt ;? Php returns "Hello, world!"; ? & Gt;  

index.php

  & lt; Php $ var = Include "inc.php"; If (isset ($ var) & empty ($ var)) {echo "this worked! \ N"; Echo "value: {$ var}"; } And {echo "this failed!"; }? & Gt;