Question

I would like to know if there is a way to access a variable defined in an other file from a class in PHP.

Example :

file_01.php

<?php
    $a = 42;
?>

file_02.php

<?php
    require_once('file_01.php');

    class mnyClass
    {
        private $myVar;

        function __construct($var = $a)
        {
            $this->myVar = $var;
        }

        function getVar()
        {
            return $this->var;
        }

        function setVar($var)
        {
            $this->myVar = $var;
        }
    }
?>

Obviously, my class is more complicated. I have chosen this example for a better comprehension of what I try to do 😉

Thank you in advance.

Answer 1

You could access the variable via GLOBALS:

http://php.net/manual/en/language.variables.scope.php

EDIT: a little more detail-

function __construct() {
  $this->myVar = $GLOBALS['a'];
}