Best Way To Autoload Classes In PHP

Question

I\'m working on a project whereby I have the following file structure:

index.php
|---lib
|--|lib|type|class_name.php
|--|lib|size|example_class.php
         


        

Answer 1

function __autoload($class_name) {
   $class_name = strtolower($class_name);
   $path       = "{$class_name}.php";
   if (file_exists($path)) {
       require_once($path);
   } else {
       die("The file {$class_name}.php could not be found!");
   }
}

UPDATE: __autoload() is deprecated as of PHP 7.2