我正在嘗試使用 php 將照片上傳到 mysql 數據庫，但是出現以下錯誤： failed to open stream: Permission denied in '/The location of my php file' on line 40. move_uploaded_file(): Unable to move '/Applications/XAMPP/xamppfiles/temp/phpgZi5gV to 'The location where the image will be stored'這是我的代碼：$dir = $path;$default = "default.png";// get Filename$filename = basename($filen['name']);$targetFilePath = $dir.$filename;$filetype = pathinfo($targetFilePath, PATHINFO_EXTENSION);if(!empty($filename)) {    //allowed file formats    $allowedFormats = array("jpg", "png", "jpeg", "gif", "pdf");    if(in_array($filetype, $allowedFormats)) {        if(move_uploaded_file($filen['tmp_name'], $targetFilePath)) {            return $targetFilePath;        }    }