Drupal Class to global functions

DrupalClass.php

<?php

class DrupalClass {

  static $instances = array();

  public function __construct()
  {
      $class = get_class($this);
      if (isset(self::$instances[$class])) return;

      // Generate global functions from the class methods
      $methods = get_class_methods($this);
      foreach ($methods as $method) {
          eval("function {$class}_{$method}(){
return call_user_func_array(
array(DrupalClass::\$instances['$class'], '$method'),
$args = func_get_args()
);
}");
      }

      // Register this instance in the registry
      self::$instances[$class] = $this;
  }

}

MyModule.php

<?php

class MyModule extends DrupalClass {
  
  public function hook_menu(...)
  {
     ...
  }

  public function hook_save(...)
  {
     ...
  }
}

// Instantiate to register global functions
new MyModule();