php用@ readfile() 形式下载文件

<?php

$file = '文件路径和名字';
 
if (file_exists($file)) {
    header('Content-Description: File Transfer');
    header('Content-Type: application/octet-stream');
    header('Content-Disposition: attachment; filename='.basename($file));
    header('Content-Transfer-Encoding: binary');
    header('Expires: 0');
    header('Cache-Control: must-revalidate');
    header('Pragma: public');
    header('Content-Length: ' . filesize($file));
    ob_clean();
    flush();
    readfile($file);
    exit;
}

?>

 如果文件较

$handle = fopen($file, 'rb'); 
 while(!feof($handle))

{
      echo fread($handle, 1024);
}
    fclose($handle);

 

输出类似于

html代码

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