Go Premium for a chance to win a PS4. Enter to Win

x
?
Solved

Help With Sorting a Foreach loop into Outputting in a Particular Order

Posted on 2009-05-15
5
Medium Priority
?
254 Views
Last Modified: 2012-05-07
I have a file uploader in my forum, for people to upload albums they have written. I have modified Uber Uploader (a progress bar script) to my needs for this usage. After upload is complete i have it writing an xspf playlist file for an audio player from the mp3 files it finds. My problem is uber uploader has a random (well, i cant find how it does it) way of cycling through its uploaded filelist and does not follow the upload order in its output end. This means my xspf playlist file is not created with the correct track order for the album.

I have now included getid3 so that I can grab id3 data from the mp3. How can I make the foreach loop output the stringdata for the xspf in order of the track field getid3 finds? 1,2,3,4,5 sequentially.

Code below shows what I have working:
function createxspfplayer($_FILE_DATA, $_CONFIG_DATA, $_POST_DATA)
 
{
  
include('../../getid3/getid3.php');
 
$mp3pattern = '/.mp3/i';
$xspffile = $_CONFIG_DATA['absolute_path'] . $_CONFIG_DATA['upload_id'] . ".xspf";
$xspfurl = $_CONFIG_DATA['path_to_upload'] . $_CONFIG_DATA['upload_id'] . ".xspf";
$fh = fopen($xspffile, 'w') or die("can't open file");
 
$stringData = "<?xml version=\"1.0\" encoding=\"UTF-8\"?>
<playlist version=\"0\" xmlns=\"http://xspf.org/ns/0/\">
   <trackList>";
 
fwrite($fh, $stringData);
 
 
 
foreach($_FILE_DATA as $slot => $value){
		$file_slot = $_FILE_DATA[$slot]->getFileInfo('slot');
		$file_name = $_FILE_DATA[$slot]->getFileInfo('name');
                    if($file_size > 0){
 
                            $file_path = $_CONFIG_DATA['path_to_upload'] . $file_name;
 
                          if (preg_match($mp3pattern, $file_name))
                           {
 
                           $getID3 = new getID3;
                           $mp3path = $_CONFIG_DATA['absolute_path'] . $file_name;
                           $mp3info = $getID3->analyze($mp3path);
                           getid3_lib::CopyTagsToComments($mp3info);
 
// @$mp3Info['comments_html']['track'][0] would give me the track number from the mp3, obviously a new/different type of loop must be created to sort, this is what i am asking for help with
 
                           $stringData = "<track>
                           <location>" . $file_path . "</location>
                           <info>" . $file_path . "</info>
                           <title>" . @$mp3info['comments_html']['track'][0] . " " . @$mp3info['tags']['id3v2']['title'][0] . " " . @$mp3info['playtime_string'] . "</title>
                           <link>http://www.aiwazz.com/mdp/</link>
                           </track>";
 
                           fwrite($fh, $stringData);
                           }
 
		}
		else{ echo '' . $file_name . ' <span class="ubrError">Failed To Upload</span>'; }
 
  }
$stringData = "</trackList>
</playlist>";
 
fwrite($fh, $stringData);
 
fclose($fh);

Open in new window

0
Comment
Question by:aiwazz
  • 3
  • 2
5 Comments
 
LVL 19

Expert Comment

by:Michael701
ID: 24397047
my thought is to first loop through and build an array by_track[], use ksort then do a foreach on this

$by_track[ mp3Info['comments_html']['track'][0] ] = $slot;

do you need more code?
0
 

Author Comment

by:aiwazz
ID: 24397368
Thank you for taking a look! Admittedly i am no php wiz, just getting going... A little more code would be of great benefit if you have the time to share it. I can understand the gist of were you went but might stumble implementing (havent used php's sort function before). I am at work and will be home in 2 hours to test my code.

I really appreciate your time, thanks again!
0
 
LVL 19

Accepted Solution

by:
Michael701 earned 2000 total points
ID: 24397853
untested code, but try this.
<?php
function createxspfplayer($_FILE_DATA, $_CONFIG_DATA, $_POST_DATA)
 
{
  
include('../../getid3/getid3.php');
 
$mp3pattern = '/.mp3/i';
$xspffile = $_CONFIG_DATA['absolute_path'] . $_CONFIG_DATA['upload_id'] . ".xspf";
$xspfurl = $_CONFIG_DATA['path_to_upload'] . $_CONFIG_DATA['upload_id'] . ".xspf";
$fh = fopen($xspffile, 'w') or die("can't open file");
 
$stringData = "<?xml version=\"1.0\" encoding=\"UTF-8\"?>
<playlist version=\"0\" xmlns=\"http://xspf.org/ns/0/\">
   <trackList>";
 
fwrite($fh, $stringData);
 
foreach($_FILE_DATA as $slot => $value)
{
  $file_slot = $_FILE_DATA[$slot]->getFileInfo('slot');
  $file_name = $_FILE_DATA[$slot]->getFileInfo('name');
  if(filesize($_CONFIG_DATA['absolute_path'] . $file_name) > 0) // $file_size was not set
  {
    $file_path = $_CONFIG_DATA['path_to_upload'] . $file_name;
 
    if (preg_match($mp3pattern, $file_name))
    {
      $getID3 = new getID3;
      $mp3path = $_CONFIG_DATA['absolute_path'] . $file_name;
      $mp3info = $getID3->analyze($mp3path);
      getid3_lib::CopyTagsToComments($mp3info);
       
      $by_track[ mp3Info['comments_html']['track'][0] ] = $slot;
    }
  }
}
 
ksort($by_track);
reset($by_track); // resets foreach pointer to the begining of the array
 
foreach($by_track as $track => $slot){
                $file_slot = $_FILE_DATA[$slot]->getFileInfo('slot');
                $file_name = $_FILE_DATA[$slot]->getFileInfo('name');
                    if($file_size > 0){
 
                            $file_path = $_CONFIG_DATA['path_to_upload'] . $file_name;
 
                          if (preg_match($mp3pattern, $file_name))
                           {
 
                           $getID3 = new getID3;
                           $mp3path = $_CONFIG_DATA['absolute_path'] . $file_name;
                           $mp3info = $getID3->analyze($mp3path);
                           getid3_lib::CopyTagsToComments($mp3info);
 
// @$mp3Info['comments_html']['track'][0] would give me the track number from the mp3, obviously a new/different type of loop must be created to sort, this is what i am asking for help with
 
                           $stringData = "<track>
                           <location>" . $file_path . "</location>
                           <info>" . $file_path . "</info>
                           <title>" . @$mp3info['comments_html']['track'][0] . " " . @$mp3info['tags']['id3v2']['title'][0] . " " . @$mp3info['playtime_string'] . "</title>
                           <link>http://www.aiwazz.com/mdp/</link>
                           </track>";
 
                           fwrite($fh, $stringData);
                           }
 
                }
                else{ echo '' . $file_name . ' <span class="ubrError">Failed To Upload</span>'; }
 
  }
$stringData = "</trackList>
</playlist>";
 
fwrite($fh, $stringData);
 
fclose($fh);
?>

Open in new window

0
 

Author Comment

by:aiwazz
ID: 24398612
Just a little bit of fix, thanks for pointing out my missed bit on the filesize...

You rock. I thank you.

here's the final working code:
function createxspfplayer($_FILE_DATA, $_CONFIG_DATA, $_POST_DATA)
 
{
  
include('/path/to/getid3/getid3.php');
 
$mp3pattern = '/.mp3/i';
$jpgpattern = '/.jpg/i';
$jpegpattern = '/.jpeg/i';
$space = ' ';
$underscore = '/_/i';
$xspffile = $_CONFIG_DATA['absolute_path'] . $_CONFIG_DATA['upload_id'] . ".xspf";
$xspfurl = $_CONFIG_DATA['path_to_upload'] . $_CONFIG_DATA['upload_id'] . ".xspf";
$fh = fopen($xspffile, 'w') or die("can't open file");
 
$stringData = "<?xml version=\"1.0\" encoding=\"UTF-8\"?>
<playlist version=\"0\" xmlns=\"http://xspf.org/ns/0/\">
   <trackList>";
 
fwrite($fh, $stringData);
 
foreach($_FILE_DATA as $slot => $value){
		$fname = $_FILE_DATA[$slot]->getFileInfo('name');
                               if (preg_match($jpgpattern, $fname)) {
                         $imglink = $_CONFIG_DATA['path_to_upload'] . $fname;
                    }
                    elseif (preg_match($jpegpattern, $fname)) {
                         $imglink = $_CONFIG_DATA['path_to_upload'] . $fname;
                    }
 
  }
 
foreach($_FILE_DATA as $slot => $value)
{
  $file_slot = $_FILE_DATA[$slot]->getFileInfo('slot');
  $file_name = $_FILE_DATA[$slot]->getFileInfo('name');
  $file_size = $_FILE_DATA[$slot]->getFileInfo('size');
  if($file_size > 0)
  {
    $file_path = $_CONFIG_DATA['path_to_upload'] . $file_name;
 
    if (preg_match($mp3pattern, $file_name))
    {
      $getID3 = new getID3;
      $mp3path = $_CONFIG_DATA['absolute_path'] . $file_name;
      $mp3info = $getID3->analyze($mp3path);
      getid3_lib::CopyTagsToComments($mp3info);
       
      $by_track[ @$mp3info['comments_html']['track'][0] ] = $slot;
    }
  }
}
 
ksort($by_track);
reset($by_track); // resets foreach pointer to the begining of the array
 
foreach($by_track as $track => $slot){
                $file_slot = $_FILE_DATA[$slot]->getFileInfo('slot');
                $file_name = $_FILE_DATA[$slot]->getFileInfo('name');
                $file_size = $_FILE_DATA[$slot]->getFileInfo('size');
                    if($file_size > 0){
 
                            $file_path = $_CONFIG_DATA['path_to_upload'] . $file_name;
 
                          if (preg_match($mp3pattern, $file_name))
                           {
 
                           $getID3 = new getID3;
                           $mp3path = $_CONFIG_DATA['absolute_path'] . $file_name;
                           $mp3info = $getID3->analyze($mp3path);
                           getid3_lib::CopyTagsToComments($mp3info);
 
                           $stringData = "<track>
                           <location>" . $file_path . "</location>
                           <info>" . $file_path . "</info>
                           <title>" . @$mp3info['comments_html']['track'][0] . " " . @$mp3info['tags']['id3v2']['title'][0] . " " . @$mp3info['playtime_string'] . "</title>
                           <image>";
                           fwrite($fh, $stringData);
 
                           if (isset($imglink))
                           {
                             $stringData = $imglink;
                             fwrite($fh, $stringData);
                             }
 
                           $stringData = "</image>
 
                           <link></link>
                           </track>";
 
                           fwrite($fh, $stringData);
                           }
 
                }
                else{ echo '' . $file_name . ' <span class="ubrError">Failed To Upload</span>'; }
 
  }
$stringData = "</trackList>
</playlist>";
 
fwrite($fh, $stringData);
 
fclose($fh);

Open in new window

0
 

Author Closing Comment

by:aiwazz
ID: 31581970
perfect, thank you so much!
0

Featured Post

VIDEO: THE CONCERTO CLOUD FOR HEALTHCARE

Modern healthcare requires a modern cloud. View this brief video to understand how the Concerto Cloud for Healthcare can help your organization.

Question has a verified solution.

If you are experiencing a similar issue, please ask a related question

Password hashing is better than message digests or encryption, and you should be using it instead of message digests or encryption.  Find out why and how in this article, which supplements the original article on PHP Client Registration, Login, Logo…
Since pre-biblical times, humans have sought ways to keep secrets, and share the secrets selectively.  This article explores the ways PHP can be used to hide and encrypt information.
Learn how to match and substitute tagged data using PHP regular expressions. Demonstrated on Windows 7, but also applies to other operating systems. Demonstrated technique applies to PHP (all versions) and Firefox, but very similar techniques will w…
The viewer will learn how to create a basic form using some HTML5 and PHP for later processing. Set up your basic HTML file. Open your form tag and set the method and action attributes.: (CODE) Set up your first few inputs one for the name and …
Suggested Courses

916 members asked questions and received personalized solutions in the past 7 days.

Join the community of 500,000 technology professionals and ask your questions.

Join & Ask a Question