Question

此代码强制下载适用于Chrome和Mozilla。但问题是所有文件大小都是3kb。为什么？大小不同，如3MB，4MB，3.5MB，下载文件只是一个损坏的3kb ......请帮忙。

注意：如果使用标题重定向，则可以在Chrome中正常下载或在其他浏览器中打开并开始播放而无需下载。

<?php
    //Bring in My functions
    require_once ('../inc/functions.php');
    //Bring in my header
    require_once ('../inc/header.php');
?>
<!-- Page body starts -->
    <div class="container">
        <div class="col-md-9 contentArea">      
<?php
//Get File, Check For Existence and Download
//Get File, Check For Existence and Download
        if(isset($_GET['file'])){
            $file = sanitizeMySQL($con, $_GET['file']);
            $checkFile = "SELECT * FROM files WHERE f_song = '$file' AND f_del='0'";
            $checkFileRun = mysqli_query($con, $checkFile);
            $fileName = mysqli_fetch_assoc($checkFileRun);
            //$song = $fileName['f_song'];
            if($fileName['f_song']==null || $fileName['f_song'] == ""){
                echo '<h4 class="text-center"><i class="fa fa-times-circle fa-3x red"></i><br />Sorry! This is does not Exist on this Server or has been moved</h4>';
            }else{
                $updateDownload = "UPDATE b_files SET f_count={$fileName['f_count']}+1 WHERE f_song ='$file' AND f_del='0'";
                $updateDownloadRun = mysqli_query($con, $updateDownload);
                $filePath = SITE_URL."music/".$file;
                $fileSize = filesize($filePath);
                header("Cache-Control: public");
                header("Content-Description: File Transfer");
                header("Content-Length: ".$fileSize);
                header("Content-Disposition: attachment; filename=".$file);
                header("Content-Type: audio/mpeg, audio/x-mpeg, audio/x-mpeg-3, audio/mpeg3");
                header("Content-Transfer-Encoding: binary");
                //Read the file
                readfile($filePath);        
                //header("Location:".SITE_URL.'music/'.urldecode($fileName['file_song_name']));
                exit();
            }
        }elseif(!isset($_GET['file'])){
            echo '<h4 class="text-center"><i class="fa fa-times-circle fa-3x red"></i><br />Sorry! File Not Found</h4>';
        }
//File Download Ends
        ?>
        </div>
        <!-- Call In The SideBar -->
        <?php require_once '../inc/sidebar.php'; ?>
    </div>

<?php
    require_once ('../inc/footer.php');
?>

Answer 1

执行readfile时，您已经将包含的文件和一些HTML写入输出缓冲区。这将导致媒体文件损坏。你可能想在放弃任何HTML内容之前放入readfile并退出（或die（））。

SITE_URL对$ filePath不起作用。您可能需要通过预先添加

来找到正确的文件路径

...dirname(dirname(__file__))...

Answer 2

感谢 Vishva8kumara 。我删除了所有输出，它下载大小为零字节，文件已损坏。以下是新代码

   <?php
    //Bring in My functions
    require_once ('../inc/functions.php');
//Get File, Check For Existence and Download
//Get File, Check For Existence and Download
        if(isset($_GET['file'])){
            $file = sanitizeMySQL($con, $_GET['file']);
            $checkFile = "SELECT * FROM files WHERE f_song = '$file' AND f_del='0'";
            $checkFileRun = mysqli_query($con, $checkFile);
            $fileName = mysqli_fetch_assoc($checkFileRun);
            //$song = $fileName['f_song'];
            if($fileName['f_song']==null || $fileName['f_song'] == ""){
                echo '<h4 class="text-center"><i class="fa fa-times-circle fa-3x red"></i><br />Sorry! This is does not Exist on this Server or has been moved</h4>';
            }else{
                $updateDownload = "UPDATE b_files SET f_count={$fileName['f_count']}+1 WHERE f_song ='$file' AND f_del='0'";
                $updateDownloadRun = mysqli_query($con, $updateDownload);
                $filePath = "http://localhost/du/music/".$file;
                $fileSize = filesize($filePath);
                header("Cache-Control: public");
                header("Content-Description: File Transfer");
                header("Content-Length: ".$fileSize);
                header("Content-Disposition: attachment; filename=".$file);
                header("Content-Type: audio/mpeg, audio/x-mpeg, audio/x-mpeg-3, audio/mpeg3");
                header("Content-Transfer-Encoding: binary");
                //Read the file
                readfile($filePath);        
                //header("Location:".SITE_URL.'music/'.urldecode($fileName['file_song_name']));
                exit();
            }
        }
?>

所有Mp3文件仅以3kb下载并损坏

2 个答案: