PHP试图包含glob(）数组'；d目录，并且找不到最后一个目录

你好，我有以下方法：

private static function loadIncludes()
{
    // prepare array of files from folders
    $files = array(
        glob(self::libPath()."/*.php"),
        glob(self::controllersPath()."/*.php"),
        glob(self::extensionsPath()."/*.php"),
    );
    // include files
    foreach ($files as $set)
    {
        if (is_array($set)) foreach ($set as $file)
        {
            require_once($file);
        }
    }
}

如果我打印$files数组，它包含所有文件，但由于某种原因，它没有对最后一个数组项（/home/*/app/extensions/Controller.php）执行requireonce（）操作参见输出：

Array
(
    [0] => Array
        (
            [0] => /home/***/app/lib/CApp.php
            [1] => /home/***/app/lib/CController.php
            [2] => /home/***/app/lib/CDb.php
            [3] => /home/***/app/lib/CView.php
        )
    [1] => Array
(
            [0] => /home/***/app/controllers/SiteController.php
        )
    [2] => Array
(
            [0] => /home/***/app/extensions/Controller.php
        )
)