php download 语句

1.Basic

header("Content-type: text/directory");header("Content-Disposition: attachment; filename=" . "ok" . ".text" . "");header("Pragma: public");print "haha i am yes. ok!";

$file = "/tmp/dummy.tar.gz";header("Content-type: application/octet-stream");header('Content-Disposition: attachment; filename="' . basename($file) . '"');header("Content-Length: ". filesize($file));readfile($file);

2.Forcing a download using readfile()    [reference:http://cn2.php.net/manual/en/function.readfile.php点击打开链接]

$file = 'monkey.gif';if (file_exists($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;}