Laravel 错误。无法打开目录：未实现

Question

我正在尝试使用此脚本从 Laravel 项目的一个文件夹中的所有图片渲染一个画廊。我收到这个错误

ErrorException in ArmadiController.php line 32: opendir(http://mysite.dev:8000/images): failed to open dir: not implemented

这是控制器中产生错误的函数。我怎样才能让它工作或做类似的事情？

public function gallery()
    {
        $data = [];
        $folder_path = asset('images');
        $num_files = glob($folder_path . "*.{JPG,jpg,gif,png,bmp}", GLOB_BRACE);
        $folder = opendir($folder_path);
        if ($num_files > 0) {
            while (false !== ($file = readdir($folder))) {
                $file_path = $folder_path . $file;
                $extension = strtolower(pathinfo($file, PATHINFO_EXTENSION));
                if ($extension == 'jpg' || $extension == 'png' || $extension == 'gif' || $extension == 'bmp') {
                    $data[] = $file_path;
                }
            }
        } else {
            return "the folder was empty !";
        }
        closedir($folder);
        return $data;
    }

Answer 1

问题是 opendir() 函数需要本地路径。可以使用 public_path() 而不是 asset() 函数来解决。