任意格式檔案下載

支援任意格式的檔案下載 函數有兩個參數，第一個參數是檔案在伺服器中完成路徑，第二個參數是下載顯示檔案名稱。 /** * 下載檔案 * filename 不包括尾碼名 */ public function download($_path, $filename = '') { if (file_exists($_path)) { $fullPath = CHtml::decode($_path); $filename = $filename ? $filename : substr(strrchr($fullPath, '/'), 1); // Parse Info / Get Extension $fsize = filesize($fullPath); $path_parts = pathinfo($fullPath); $ext = strtolower($path_parts["extension"]); $filename .= '.' . $ext; // Determine Content Type switch ($ext) { case 'apk': $ctype = 'application/vnd.android.package-archive'; break; case 'chm': $ctype = 'application/octet-stream'; break; case "pdf": $ctype = "application/pdf"; break; case "txt": $ctype = "application/txt"; break; case "zip": $ctype = "application/zip"; break; case "doc": $ctype = "application/msword"; break; case "xls": $ctype = "application/vnd.ms-excel"; break; case "ppt": $ctype = "application/vnd.ms-powerpoint"; break; case "gif": $ctype = "image/gif"; break; case "png": $ctype = "image/png"; break; case "jpeg": case "jpg": $ctype = "image/jpg"; break; default: $ctype = "application/force-download"; } $ua = $_SERVER["HTTP_USER_AGENT"]; $encoded_filename = rawurlencode($filename); $encoded_filename = str_replace("+", "%20", $encoded_filename); header("Pragma: public"); // required header("Expires: 0"); header("Cache-Control: must-revalidate, post-check=0, pre-check=0"); header("Cache-Control: private", false); // required for certain browsers header("Content-Type: $ctype"); // header('Content-Disposition: attachment; filename="'.rawurlencode($filename).'"'); if (preg_match("/MSIE/", $ua)) { header('Content-Disposition: attachment; filename="' . $encoded_filename . '"'); } else if (preg_match("/Firefox/", $ua)) { header("Content-Disposition: attachment; filename*=utf8''" . $filename . '"'); } else { header('Content-Disposition: attachment; filename="' . $filename . '"'); } header("Content-Transfer-Encoding: binary"); header("Content-Length: " . $fsize); ob_clean(); flush(); readfile($fullPath); } else { throw new Exception('檔案不存在！', 1); } } 複製代碼

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