PHP - Pdf File Not Correctly Encoded When Downloading A Pdf File From Php

Hello everyone.
I have a problem with some of my php script.

I have some php code that downloads a remote file and directly outputs it to the user. It works and all, it's just that when I do it on my Ubuntu LAMP server, downloading a file takes up a lot of ram. On my Windows WAMP server it works correctly and doesn't use up so much ram. Is this a problem with my code, or is it a server configuration?

Below is the code I use to download the file.
Code: [Select]

public function output_file($file, $name, $mime_type='', $size)
   {
   session_write_close();
    /*
    This function takes a path to a file to output ($file),
    the filename that the browser will see ($name) and
    the MIME type of the file ($mime_type, optional).
   
    If you want to do something on download abort/finish,
    register_shutdown_function('function_name');
    */
    if(is_readable($file)) die('File not found or inaccessible!');
    /*
    $size = $size;
    $name = rawurldecode($name); */
   
    /* Figure out the MIME type (if not specified) */
    $known_mime_types=array(
      "pdf" => "application/pdf",
      "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($mime_type==''){
       $file_extension = strtolower(substr(strrchr($file,"."),1));
       if(array_key_exists($file_extension, $known_mime_types)){
         $mime_type=$known_mime_types[$file_extension];
       } else {
         $mime_type="application/x-rar-compressed";
       };
    };
   
    @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: no-cache");
    //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); //you may want to change this
    $bytes_send = 0;
    if ($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();
   }
   // END OUTPUT_FILE function

I wonder if some kind-hearted person can help me?
I am trying to download a video file which has a wmv. The protocol is either mms:// or http://

I can see the video in my browser but I cannot download it using curl or wget in a program and I need to download a few of these.
They are publicly viewable so they are not private stuff.
The URL is http://210.150.12.140/vod11/tepco/other/1111_01.wmv?MSWMExt=.asf
or
mms://wmt.stream.co.jp/vod11/tepco/other/1111_01.wmv

All I get at the moment is a text file of less than 1K and not the movie itself.
How would I download this file please?
Thanks
Paul

Hello,   I want the user to get authenticated before file download starts   Here is my code:    <?php
if (!isset($_SERVER['PHP_AUTH_USER'])) {
    header('WWW-Authenticate: Basic realm="My Realm"');
    header('HTTP/1.0 401 Unauthorized');
    echo 'Your request is cancelled';
    exit;
} else {
    //check $_SERVER['PHP_AUTH_USER'] and $_SERVER['PHP_AUTH_PW']
    if (isset ($valid)) {
        //start download

        $path = './data/negative_seq_60.txt';
        $type = "text/plain";

        header("Expires: 0");
        header("Pragma: no-cache");
        header('Cache-Control: no-store, no-cache, must-revalidate');
        header('Cache-Control: pre-check=0, post-check=0, max-age=0');
        header("Content-Description: File Transfer");
        header("Content-Type: " . $type);
        header("Content-Length: " .(string)(filesize($path)) );
        header('Content-Disposition: attachment; filename="'.basename($path).'"');
        header("Content-Transfer-Encoding: binary\n");

        readfile($path); // outputs the content of the file

        exit();
    } else {
        //show error
    }
}
?>   But on clicking download link, I am getting the following error : " Undefined variable: valid at line no 9".   Please help.

I have a script that will download a file from my server onto the user's computer. The problem is it's adding the pages HTML to the top of the file. When I actually look at the file on my server it does NOT have the HTML there, so it has to be some sort of problem with my headers.

Code: [Select]
<?php

$fname = "keyword_files/".$this->fileID.".csv";

header('Content-type: application/csv');
header("Content-Disposition: inline; filename=".$fname);
readfile($fname);

?>

I would appreciate any help! Thanks.

Hello, I am new and am having a hard time with PHP. 

Scenario:  There are PDF files on my website that I want users to register before downloading the files.  I do not want them to login but rather provide basic information such as name and email address.  Once the form is submitted, I am not sure if I should be using PHPSESSION to validate the user.  Also, I am not sure where to place the files: either in the webroot (/var/www/) or outside.

I am new to PHP so please forgive me if I use terminology incorrectly.

Thank you for reading my question.

Hi,

I want to download more than one file at a time. But now I can't download any of them that way. I want to solve it the way it is in gmail, i.e. I download either 1 file separately or if there are two or more, it is zipped.

Thanks in advanced,

T

<!-- images -->
      <section class="card shadow mb-3">

        <form action="index.php?lg=<?php echo $lng; ?>&c=text" method="post" enctype="multipart/form-data">
      <header class="card-header navbar-custom"><h3 class="text-center"><?php echo $new_document_h3_images; ?></h3></header>
      <div class="row">
        <?php
$files = glob('./tekstovi/' . $user_txt_year . '/' . $user_txt_nr . '/' . $text_page . '/' . $user_txt_year . '_' . $user_txt_nr . '_' . $text_nr . '_' . $text_page . '_img_' . '*.{doc,docx,odt,pdf,jpg,JPG,jpeg,png,gif,psd,eps,ai,tiff,tif}', GLOB_BRACE);
$dir = './tekstovi/' . $user_txt_year . '/' . $user_txt_nr . '/' . $text_page . '/';
//$index = '0';
for ($i = 0; $i < count($files); $i++) {
  $image = $files[$i];

  ?>
        <div class="col-sm-4 py-2">
          <div class="card h-100">
            <input type='checkbox' style="position: absolute; left: 10px; top: 10px;" name='boxes[]' value='<?php echo basename($image); ?>' />

            <?php echo '<img class="img-fluid" src="' . $image . '" alt="" />'; ?>
            <div class="card-body">
              <p class="card-title"><?php echo basename($image); ?></p>
            </div>
            <div class="card-footer"><?php
$stmt_captionreload = $pdo->prepare('SELECT * FROM `sn_images`
              WHERE sn_images_text_id = :sn_images_text_id
              AND CONCAT(`sn_images_filename`,`sn_images_basename`) = "' . basename($image) . '"
              ');
  $stmt_captionreload->bindValue(':sn_images_text_id', $text_id);
  $stmt_captionreload->execute();
  $row_captionreload = $stmt_captionreload->fetch(PDO::FETCH_ASSOC);
  $one_caption = stripslashes($row_captionreload['sn_images_caption']);
  ?>
            <small class="text-muted"><?php echo $one_caption; ?></small></div>
          </div>
        </div>

        <?php }?>
        </div><!-- row-->
        <button type="submit" name="download" value="1" class="btn btn-success float-right">Download selected</button>
        <input type = 'hidden' name="sn_text_nr" value="<?php echo $text_nr; ?>">

        </form>
        <?php
if ($_POST['download'] == '1') {
  $index = '0';
  echo 'Total count: ' . count($_POST['boxes']) . '';
  while ($index < count($_POST['boxes'])) {
    if (isset($_POST['boxes'][$index])) {
      $file = $_POST['boxes'][$index];
      $path = $dir . $file;
      header('Content-Description: File Transfer');
      header('Content-Type: application/octet-stream');
      header('Content-Disposition: attachment; filename=' . basename($path));
      header('Content-Transfer-Encoding: binary');
      header('Expires: 600');
      header('Cache-Control: must-revalidate, post-check=0, pre-check=0');
      header('Pragma: public');
      header('Content-Length: ' . filesize($path));
      flush();
      readfile($path);
    } else {

    }
    $index++;
  }
}

?>

      </section>
      <!-- /. images -->

 

Hi,

I'm trying to figure out the best way to determine if a user is currently downloading a file from my website.
The way my site works, is the user waits 30 seconds and views an ad. After the timer is up the download becomes available.
I heard that I could probably use a timestamp or something of the sort. I've read up on it but not sure how I could go about this.

Hello,

I have the following code to force download mp3 file. the code is working fine but its only downloading 799 bytes. I am new in php and not able to figure out the problem. please help me to sort it out. thanks.

Code: [Select]
<?php 
                include "dbconnect.php"; 
                $link=dbconnect(); 
                $cat=$_GET['catagory']; 
                $id=$_GET['id']; 

                $query=("select *from $cat where id='$id'"); 
                $result=mysql_query($query); 
                $row=mysql_fetch_array($result); 
                $file = $row["link"]; 
                header ("Content-type: octet/stream"); 
                header("Content-Disposition: attachment; filename=\"".basename($file)."\";" );  
                header("Content-Length: ".filesize($file)); 
                readfile($file); 
                exit;                 
?>

Ok, I have a download script. The script is called like:

http://www.site.net/index.php?action=downloadfile&filename=file001.zip&directory=directory12&

The download file code is below. My site hosts quite a few files that get linked on other websites. Problem is, when that link is clicked, obviously it just starts the file download, as if it were a direct link to the file.

What I need to do, is still have it download the file when the link is clicked, but I would also like it to redirect the browser to my homepage as well.

I tried placing this after the download headers but it didn't work.

header("Location: http://www.site.net");

Can anyone give me an idea how I can get the code to do that? Keep in mind that I'm not fluent in PHP.



case 'downloadfile';

$filename = getGetVar('filename');
$directory = getGetDir('directory');


$current_dir = $uploads_folder_name;
if ($directory != '')
{ $current_dir.="/$directory"; }


$filename = basename($filename);


if (!$grants[$user_status][DOWNLOAD])
{
place_header($mess[111]);
show_Contents();
break;
}


if (!file_exists("$current_dir/$filename"))
{
place_header($mess[125]);
show_Contents();
break;
}


if (!is_path_safe($directory, $filename))
{
place_header($mess[111]);
show_Contents();
break;
}


list($upl_user, $upl_ip, $filestatus, $contents) = get_file_description("$current_dir/$filename", $comment_max_caracters);
if ($validation_enabled && $filestatus == UNVALIDATED && !$grants[$user_status][VALIDATE])
{
place_header($mess[111]);
show_Contents();
break;
}



$size = filesize("$current_dir/$filename");
$daily_size = get_daydownload();
if (($max_daily_download_mb > 0) && (($size + $daily_size) > ($max_daily_download_mb * 1024 * 1024)))
{
place_header($mess[212]);
show_Contents();
break;
}


$monthly_size = get_monthdownload();
if (($max_monthly_download_mb > 0) && (($size+$monthly_size) > ($max_monthly_download_mb * 1024 * 1024)))
{
place_header($mess[213]);
show_Contents();
break;
}
increasefiledownloadcount("$current_dir/$filename");
increasebytecountdl("$destination/$userfile_name");
if (($user_status != ANONYMOUS) && ($logged_user_name != ''))  // Update user statistics
{
list($files_uploaded, $files_downloaded, $files_emailed) = load_userstat($logged_user_name);
$files_downloaded++;
save_userstat($logged_user_name, $files_uploaded, $files_downloaded, $files_emailed, time());
}


header("Content-Type: application/force-download; name=\"$filename\"");
header("Content-Transfer-Encoding: binary");
header("Content-Length: $size");
header("Content-Disposition: attachment; filename=\"$filename\"");
header("Expires: 0");
header("Cache-Control: no-cache, must-revalidate");
header("Pragma: no-cache");

// Decrypt file if encryption enabled
if ($encrypt_filecontent)
{ decrypt_file("$current_dir/$filename", true); }
else
{ readfile_chunked("$current_dir/$filename"); }


exit;
break;

<?php
$filename = "text.txt";
$filename2 = "text2.txt";
$file = file($filename, FILE_SKIP_EMPTY_LINES);
foreach($file as $cwb)
 {
   $ids[] = "\$id_to_save[] = ".$cwb.";";
 }
file_put_contents($filename2,implode($ids,"\n\r"));
?>

it takes ids from a file and implodes to a new file

its supposed to looked like this

$id_to_save[] = id;
$id_to_save[] = id;
$id_to_save[] = id;
$id_to_save[] = id;

instead it turns out like this

$id_to_save[] = 4234324
;

$id_to_save[] = 2342343
;

$id_to_save[] = 3423432
;

$id_to_save[] = 3243244;

I've tried trim() but it hasnt seemed to work., any help is appreciated. Thanks

Hi! I'm a total stupid newbie. Please humor me.
So, I'm trying to make a guestbook, just as practice. So far I have a form that writes entries to a file, each entry on a new line. Entries look like this:

Code: [Select]
11:11 am, Oct 12th, 2010|name|website|message
My dividing character between parts of the entries is the vertical bar. I don't know if that's a bad idea. As I said, I'm a newb. I should probably find out how to make a code that makes it so people can't use that character in the form.
Anyway, this is my code so far trying to display the entries. So far, I just want to show the date of the first entry.

$file = fopen("posts.txt", 'rb');

while(!feof($file) && fgetc($file) != "|"){
$date = $date.fgetc($file);
}

echo $date;

fclose($file);

I already have a problem. The code does stop at the vertical bar, but instead of showing the date as "11:11 am, Oct 12th, 2010" it shows "11 m c 2h 00". I'm just super confused, and I don't know what to do.
Thanks. (:

I've looked over it a couple times and I still get the error. Here's the code
<?php
require('header.php');
require('links.php');

$name = mysql_real_escape_string($_POST['file']);
$url = mysql_real_escape_string($_POST['file']);

$filename = $_FILES['file']['name'];
$temp = $_FILES['file']['tmp_name'];
$error = $_FILES['file']['error'];

$sql = "insert into books set name='$name', url='$url'";

if(isset($_POST['submit'])) {

if($error > 0) {

die("Error uploading file! Code $error.");

}else{

move_uploaded_file($temp,"/center/resources/books/".$filename);

mysql_query($sql);

}
}
?>

<form method='post' enctype='multipart/form-data'>
Book Name<input type="text" name="name"></br>
File<input type="file" name="file"></br>
<input type="submit" name="submit" value="Upload">
</form>

how to get the name of the file including a file from the included file,

This one has me mixed up a bit.. I am trying to record site activity information from a common.php file using a user object. But since the file is included into different php files based on different situations I need a dynamic way of finding the file name that is including it. I could be over complicating things but right now this seems like the best solution other wise I'll have to rewrite the code on every page i write. Is there a function for doing this? Or if someone gets what I'm trying to do if they could point me to the direction of some more information on it.

Thanks.

Hey everyone, I'm pretty new to this, not my full time job, but just something I thought I'd give a shot...

I have a database, in postgres, in which I make my query and I go fetch all the info I need.
What I need to do next is the tricky part for me.

For each line of results received, I have to output to a text file (.txt) but I have to respect a format that was given to me from the person requesting the info.

Example:
Character 1 must be G or N.
Character 2 to to 11 will be a result from my database search, which is a 10 digit string.
Character 12 to 14 must be spaces.

Another rule is:
start at character 78: input a value from my database search but it must not exceed 20 characters and if it is less then 20 character, fill the remaining with spaces.


If anyways has a code I can copy and work off of I would really appreciate it....thanks!

In this multi file upload form, choose three images, click submit and preview the images on the preview page. If the user wishes to delete or replace an image, click edit and the form will go back to the previous page. Select the replace radio button for example on one of the three images and select a new image from the file input prompt and click submit. The form will go to the preview page again to display the images. During this process the image names are being input into a table and the images are being moved to a directory.

The table is

  `id`  AUTO_INCREMENT,
  `image0`
  `image1`
  `image2`
  `status`

So input name='image[image0]' can be directed to table `image0` and so on.

The code for keep and delete work fine, but how do I replace an image?
I have two foreach blocks. The first one deletes the image file from the directory and deletes the image name from the table, but the second foreach dose not move the new image file into the directory.
Thanks.

<input type='radio' name='image[image0]' value='keep' checked='checked'/>
<input type='radio' name='image[image0]' value='delete' />
<input type='radio' name='image[image0]' value='replace' />
<input type="file" name="image[]" />

<input type='radio' name='image[image1]' value='keep' checked='checked'/>
<input type='radio' name='image[image1]' value='delete' />
<input type='radio' name='image[image1]' value='replace' />
<input type="file" name="image[]" />

<input type='radio' name='image[image2]' value='keep' checked='checked'/>
<input type='radio' name='image[image2]' value='delete' />
<input type='radio' name='image[image2]' value='replace' />
<input type="file" name="image[]" />

<?php
if (isset($_POST['status'])) {

$status = $_POST['status'];
$confirm_code = $status;

#--------------------------- replace --------------------------------------------

if (isset($_POST['submitted']) &&
($image = $_POST['image'])) {

foreach($image as $imageKey => $imageValue) {
if ($imageValue == 'replace') {
$query = "SELECT $imageKey FROM table WHERE status = '$status' ";
if($result = $db->query( $query )){
$row = $result->fetch_array();
}

unlink( UPLOAD_DIR.$row[0] );

$query = "UPDATE table SET $imageKey = '' WHERE status = '$status' ";
}
}

foreach($image as $imageKey => $imageValue) {
if ($imageValue == 'replace') {

$filenm = $_FILES['image']['name']; 
$file = $_FILES['image']['tmp_name'];

move_uploaded_file($file, UPLOAD_DIR . $filenm);
$filename[] = $filenm; 

$query = "INSERT INTO table VALUES ('','$filename[0]','$filename[1]','$filename[2]','$confirm_code')";
}
}
}
}
?>