Redirecting user to new page after header()
Posted: Thu Feb 28, 2008 4:38 pm
Hello.
I'm using several header() commands to force the download of a file after a user's credentials are approved. I want to redirect them to another automatically, immediately after downloading begins.
My understanding is that I can't use header("Location: ...) because I've already sent header() to force the download.
And my browser isn't seeing javascript like the following if it comes after header():
<script>
<!--
window.location="http://www.yourdomain.com/";
// -->
</script>
Are there any other options? I'd even be satisfied with something like:
echo "Thanks for downloading. Click <a href="index.html">here</a> to back home."
but my browser also doesn't display this if it follows header().
Full code below. Any ideas?
I'm using several header() commands to force the download of a file after a user's credentials are approved. I want to redirect them to another automatically, immediately after downloading begins.
My understanding is that I can't use header("Location: ...) because I've already sent header() to force the download.
And my browser isn't seeing javascript like the following if it comes after header():
<script>
<!--
window.location="http://www.yourdomain.com/";
// -->
</script>
Are there any other options? I'd even be satisfied with something like:
echo "Thanks for downloading. Click <a href="index.html">here</a> to back home."
but my browser also doesn't display this if it follows header().
Full code below. Any ideas?
Code: Select all
<?
//removed beginning
else{
//force download
function output_file($file, $name, $mime_type='')
{
//This function takes a path to a file to output ($file), the filename that the browser will see ($name) and the MIME type of the file ($mime_type, optional).
if(!is_readable($file)) die('File not found or inaccessible!');
$size = filesize($file);
$name = rawurldecode($name);
@ob_end_clean(); //turn off output buffering to decrease cpu usage
// required for IE, otherwise Content-Disposition may be ignored
if(ini_get('zlib.output_compression'))
ini_set('zlib.output_compression', 'Off');
header('Content-Type: ' . $mime_type);
header('Content-Disposition: attachment; filename="'.$name.'"');
header("Content-Transfer-Encoding: binary");
header('Accept-Ranges: bytes');
//The three lines below basically make the download non-cacheable
header("Cache-control: private");
header('Pragma: private');
header("Expires: Mon, 26 Jul 1997 05:00:00 GMT");
// multipart-download and download resuming support
if(isset($_SERVER['HTTP_RANGE']))
{
list($a, $range) = explode("=",$_SERVER['HTTP_RANGE'],2);
list($range) = explode(",",$range,2);
list($range, $range_end) = explode("-", $range);
$range=intval($range);
if(!$range_end) {
$range_end=$size-1;
} else {
$range_end=intval($range_end);
}
$new_length = $range_end-$range+1;
header("HTTP/1.1 206 Partial Content");
header("Content-Length: $new_length");
header("Content-Range: bytes $range-$range_end/$size");
} else {
$new_length=$size;
header("Content-Length: ".$size);
}
// output the file itself
$chunksize = 1*(1024*1024);
$bytes_send = 0;
if ($file = fopen($file, 'r'))
{
if(isset($_SERVER['HTTP_RANGE']))
fseek($file, $range);
while(!feof($file) &&
(!connection_aborted()) &&
($bytes_send<$new_length)
)
{
$buffer = fread($file, $chunksize);
print($buffer); //echo($buffer); // is also possible
flush();
$bytes_send += strlen($buffer);
}
fclose($file);
} else die('Error - can not open file.');
die();
}
set_time_limit(0);
$file_path='mp3/mp3.zip';
output_file($file_path, 'Seens', 'application/zip');
}
mysql_close($con);
?>