using shuffle() to randomize an array

[hellonoko]

I have a script that creates a xspf playlist from a directory of files.

 

However when I try to make the playlist random by using: shuffle(); instead of arsort(); the script write 0 1 2 3 etc to the XML file rather than the file names as arsort(); does.

 

The line in question is 59: shuffle($arr);

 

Any ideas?

 

<?php

//require_once("/flashupload2/config.php");

////////////////////////////////////////////////
///////////////////////////////////////////////

$username = "sharingi_music";
$password = "music";
$hostname = "localhost";

$db_connect = mysql_connect( $hostname , $username, $password) or die ("Unable to connect to database");

mysql_select_db( "sharingi_music" , $db_connect);

/////////////////////////////////////////////////
////////////////////////////////////////////////

// create doctype
$dom = new DOMDocument("1.0");

// display document in browser as plain text
// for readability purposes
//header("Content-Type: text/plain");

// create root element
$root = $dom->createElement("playlist");
$dom->appendChild($root);


// create attribute node
$version = $dom->createAttribute("version");
$root->appendChild($version);

// create attribute value node
$versionValue = $dom->createTextNode("1.0");
$version->appendChild($versionValue);

// create attribute node
$xmnls = $dom->createAttribute("xmlns");
$root->appendChild($xmnls);

// create attribute value node
$xmnlsValue = $dom->createTextNode("http://xspf.org/ns/0/");
$xmnls->appendChild($xmnlsValue);

// create track element
$trackList = $dom->createElement("trackList");
$root->appendChild($trackList);


	$dir = '/home2/sharingi/public_html/REPOSITORY/';

	foreach (glob( $dir.'*.*') as $filename) 
   		{
      		$arr[$filename] = filemtime($filename);
   		}

	shuffle($arr);

	foreach($arr as $key => $value) 
	{
     	
		if ( $key !== "/home2/sharingi/public_html/REPOSITORY/filelist3.php" && $key !== "/home2/sharingi/public_html/REPOSITORY/index.php" )
		{

			$key = str_replace( "/home2/sharingi/public_html/REPOSITORY/" , "" , $key);

			//echo $key;
			//echo '<br>';

			// create track element
			$track = $dom->createElement("track");
			$trackList->appendChild($track);

				// create child element of track called location.
				$location = $dom->createElement("location");
				$track->appendChild($location);

					//create location link
					$link = $dom->createTextNode("http://www.site.com/REPOSITORY/". $key);
					$location->appendChild($link);

				// create child element of track called title.
				$title = $dom->createElement("title");
				$track->appendChild($title);

					///get the song name//

					$result = mysql_query("SELECT SONG FROM songs WHERE HIDDENNAME = '$key'");

					while ($row = mysql_fetch_row($result))
					{
						$songname =  $row[0];
					}

					//create title data
					$songTitle = $dom->createTextNode("$songname");
					$title->appendChild($songTitle);


		}
	}

// save and display tree
$dom->save("playlist.xspf");

mysql_close ( $db_connect);

?>


<object type="application/x-shockwave-flash" width="400" height="170"
data="http://www.site.com/fullplayer/xspf_player.swf?playlist_url=http://www.site.com/fullplayer/playlist.xspf">
<param name="movie" 
value="http://www.site.com.com/fullplayer/xspf_player.swf?playlist_url=http://www.site.com/fullplayer/playlist.xspf" />
</object>

 

 

 

[premiso]

Shuffle restructures the array/rebuilds it.

 

array_rand look into using that, as it leaves your array in-tact but will just give you a random order of keys.

 

$arrayKeys = array_rand($array, count($array));

 

I am not sure if that will return duplicate keys, but give that a try and see if that works for you.