Learn how to create dynamic XML files for an mp3 playlist player using PHP and any folder full of songs. <?php // PHP file that renders perfect Dynamic XML for mp3 Player applications // Script written by Adam Khoury @ www.developphp.com - April 05, 2010 // View the video that is tied to this script for maximum understanding // ------------------------------------------------------------------- header("Content-Type: text/xml"); // set the content type to xml // Initialize the xmlOutput variable $xmlBody = '<?xml version="1.0" encoding="ISO-8859-1"?>'; $dir = "mp3/"; // Specify Directory where mp3 files are $xmlBody .= "<XML>"; // Start XMLBody output // open specified directory using opendir() the function $dirHandle = opendir($dir); // Create incremental counter variable if needed $i = 0; while ($file = readdir($dirHandle)) { // if file is not a folder and if file name contains the string '.mp3' if(!is_dir($file) && strpos($file, '.mp3')){ $i++; // increment $i by one each pass in the loop $xmlBody .= ' <Song> <songNum>' . $i . '</songNum> <songURL>' . $dir . '' . $file . '</songURL> </Song>'; } // close the if statement } // End while loop closedir($dirHandle); // close the open directory $xmlBody .= "</XML>"; echo $xmlBody; // output the gallery data as XML file for flash ?> Here is the Audio Workshop series if you want to become an audio programmer: developphp.com/video/JavaScript#Audio-Programming