Download php script image - php

Question

Helo I'm trying to create download script in PHP... Upload form is ok and it stores file in folder 'upload/' but and file name is stored in DB, but when I download, it downloads file e.g. some image, when I want to see image it's only red X like here: image....any ideas?
<?php
include 'connect.php';
$query = "SELECT * FROM topics WHERE topic_id = '". $_GET['topic_id'] ."' ";
$result = mysql_query($query);
$row = mysql_fetch_array($result);
$name = $row['topic_subject'];
$file = $row['topic_file'];
header('Pragma: public');
header('Content-Description: File Transfer');
header("Content-Disposition: attachment; filename='".$file . "'");
header("Content-Type: ".mime_content_type($file)."");
header("Content-Length: " . filesize($file) ." ");
header('Content-Transfer-Encoding: binary');
readfile('uploads/',$file);
ob_clean();
flush();
?>

Answer 1

Looks like the issue could be in your call to readfile. You need to use a . to concatenate the file path to the file name, so replace;
readfile('uploads/',$file);
with
readfile('uploads/'.$file);

Answer 2

I’m using my own script for file download. Its best i find ever. You can also modify it as user requirement.
function download_file($Source_File, $Download_Name, $file_extension = '') {
/*
$Source_File = path to a file to output
$Download_Name = filename that the browser will see
$file_extension = MIME type of the file (Optional)
*/
if (!is_readable($Source_File))
die('File not found or inaccessible!');
$size = filesize($Source_File);
$Download_Name = rawurldecode($Download_Name);
/* Figure out the MIME type (if not specified) */
$known_mime_types = array(
"pdf" => "application/pdf",
"csv" => "application/csv",
"txt" => "text/plain",
"html" => "text/html",
"htm" => "text/html",
"exe" => "application/octet-stream",
"zip" => "application/zip",
"doc" => "application/msword",
"xls" => "application/vnd.ms-excel",
"ppt" => "application/vnd.ms-powerpoint",
"gif" => "image/gif",
"png" => "image/png",
"jpeg" => "image/jpg",
"jpg" => "image/jpg",
"php" => "text/plain"
);
if ($file_extension == '') {
// $file_extension = strtolower(substr(strrchr($Source_File,"."),1));
if (array_key_exists($file_extension, $known_mime_types)) {
$mime_type = $known_mime_types[$file_extension];
} else {
$mime_type = "application/force-download";
};
};
#ob_end_clean(); //off output buffering to decrease Server usage
// if IE, otherwise Content-Disposition ignored
if (ini_get('zlib.output_compression'))
ini_set('zlib.output_compression', 'Off');
header('Content-Type: ' . $mime_type);
header('Content-Disposition: attachment; filename="' . $Download_Name . '"');
header("Content-Transfer-Encoding: binary");
header('Accept-Ranges: bytes');
header("Cache-control: private");
header('Pragma: private');
header('Expires: ' . gmdate('D, d M Y H:i:s \G\M\T', time() + 3600));
// multipart-download and download resuming support
if (isset($_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); //you may want to change this
$bytes_send = 0;
if ($Source_File = fopen($Source_File, 'r')) {
if (isset($_SERVER['HTTP_RANGE']))
fseek($Source_File, $range);
while (!feof($Source_File) &&
(!connection_aborted()) &&
($bytes_send < $new_length)
) {
$buffer = fread($Source_File, $chunksize);
print($buffer); //echo($buffer); // is also possible
flush();
$bytes_send += strlen($buffer);
}
fclose($Source_File);
} else
die('Error - can not open file.');
die(1); // A response code other than 0 is a failure
}
I hope this will help you.
Cheers!
Mudassar Ali

Answer 3

You have to give the full path of an image to the readfile() function.