使用CI挂钩设置公共变量

Question

我想要使用钩子设置几个常见变量。例如我有一个post_controller_constructor钩子，在这里我想执行一些逻辑来设置用户主文件夹：

public function post_controller_constructor() {             
  $home_folder = isset($_SESSION['hf']) ? $_SESSION['hf'] : NULL;

  // Check whether the homefolder value has been set            
  $home_folder = isset($_SESSION['hf']) ? base_url($_SESSION['hf']) : base_url('default');
}

但是如何将生成的变量$ home_folder传回我的控制器？

Answer 1

public function post_controller_constructor() {             
  $home_folder = isset($_SESSION['hf']) ? $_SESSION['hf'] : NULL;

  // Check whether the homefolder value has been set            
  $home_folder = isset($_SESSION['hf']) ? base_url($_SESSION['hf']) : base_url('default');

  $CI =& get_instance();

  $CI->home_folder = $home_folder;

}

会这样做。