SendFile.php

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<?php
// FleaPHP Framework
//
// Copyright (c) 2005 - 2008 QeeYuan China Inc. (http://www.qeeyuan.com)
//
// 许可协议，请查看源代码中附带的 LICENSE.txt 文件，
// 或者访问 http://www.fleaphp.org/ 获得详细信息。

// {{{ constants
define('SENDFILE_ATTACHMENT', 'attachment');
define('SENDFILE_INLINE', 'inline');
// }}}

class FLEA_Helper_SendFile
{
    function sendFile($serverPath, $filename, $mimeType = 'application/octet-stream')
    {
        header("Content-Type: {$mimeType}");
        $filename = '"' . htmlspecialchars($filename) . '"';
        $filesize = filesize($serverPath);
        $charset = FLEA::getAppInf('responseCharset');
        header("Content-Disposition: attachment; filename={$filename}; charset={$charset}");
        header('Pragma: cache');
        header('Cache-Control: public, must-revalidate, max-age=0');
        header("Content-Length: {$filesize}");
        readfile($serverPath);
        exit;
    }
}

---