如何从另一个文件中的变量列表创建数组？

Question

I have a php file which contains just some variables and their values something like this:

<?php
    $first = "value1";
    $second = 'value2';
    $third = 'value3';
    $fourh = 'value4';
?>

How could I read this file dynamically and save it in an array? I could do this by parsing the file but is there a php function which does that?
What would be the best way to do this?

Answer 1

PHP has a function: get_defined_vars that might be useful.

You could leverage this function like so:

$currentVars = get_defined_vars();
include 'variables.php';
$fileVars = array_diff(get_defined_vars(), $currentVars);

$fileVars should be an array containing the variable binding from that file.