How can I run a file from within PHP?

[hvlav79]

Hi guys, I need your help!
I have written a piece of code that creates a file titled "playlist.m3u". I want to further develop the code so that the file "playlist.m3u" will be automatically played as soon as it is created through winamp. I have tried to use the exec() and system() functions but I couldn't get it to work. Are there any other commands I should know of? This is the code I have written:

<?php
if(isset($POST['action']) AND $POST['action']=1){
$filename = "c:/Temp/playlist.m3u";
$m3u=fopen($filename, "w") or die("cannot open $filename");
$selected=$_POST['selected'];
foreach($selected as $file){
fwrite($m3u,$file."\r\n");
}
fclose($m3u);
echo exec($filename);
}
?>

Is there someone who can help me?
Thanks in advance!

[tsinka]

Hi,

try this code:

<?php 
if(isset($_POST['action']) && $_POST['action']==1){ 
  $filename = "c:/Temp/playlist.m3u"; 
  $m3u=fopen($filename, "w") or die("cannot open $filename"); 
  $selected=$_POST['selected']; 
  foreach($selected as $file){ 
    fwrite($m3u,$file."\r\n"); 
  } 
  fclose($m3u); 
  @readfile($filename); 
} 
?> 

You might need to specify additional headers.

Thomas

[hvlav79]

Hello again. I have already tried the readfile() function but it is not good for my case. It just shows you the contents of the file, that is the songs included in the playlist. It does not run the file. Does anyone else have any suggestions?

[tsinka]

Ok,

the mime type is audio/m3u so you might try the following code:

<?php  

if(isset($_POST['action']) && $_POST['action']==1){  

  $filename = "c:/Temp/playlist.m3u";  

  $m3u=fopen($filename, "w") or die("cannot open $filename");  

  $selected=$_POST['selected'];  

  foreach($selected as $file){  

    fwrite($m3u,$file."\r\n");  

  }  

  fclose($m3u);  

  header("Content-Type: audio/m3u");
  header("Content-Disposition: attachment; filename=playlist.m3u");
  header("Content-Transfer-Encoding: 8bit");
  header("Content-Length: ".filesize($filename));
  @readfile($filename);  

}  

?>  

This should work if you have installed an application that registered that mime type with your browser. Try it with or without the Content-Transfer-Encoding line.

Thomas

[hvlav79]

No, it still does the same thing. It just shows the contents of the "playlist.m3u" at the bottom of the page. I don't think I should use readfile(). But I also used exec() with all the headers you said and still didn't work. I appreciate your help anyway!

[tsinka]

At the bottom of the page ... that might be the problem. Is there any other output like html code or any PHP messages ? Headers only works if there is no output.
Change the code so that there is only any output if e.g. the action is not set or something like that.

Thomas