PHP mp3 Audio file upload

<?php

/*

ini_set("error_display",1);

ini_set('memory_limit', '32M');

ini_set('upload_max_filesize', '24M');

ini_set('post_max_size', '32M');

//echo ini_get('upload_max_filesize');

*/

$uploadpath = 'upload/';      // directory to store the uploaded files

$max_size = 30000;          // maximum file size, in KiloBytes

$alwidth = 900;            // maximum allowed width, in pixels

$alheight = 800;           // maximum allowed height, in pixels

$allowtype = array('wav', 'mp3');        // allowed extensions

if(isset($_FILES['fileup']) && strlen($_FILES['fileup']['name']) > 1) {

// print_r($_FILES['fileup']);

// exit();

  $uploadpath = $uploadpath . basename( $_FILES['fileup']['name']);       // gets the file name

  $sepext = explode('.', strtolower($_FILES['fileup']['name']));

  $type = end($sepext);       // gets extension

  list($width, $height) = getimagesize($_FILES['fileup']['tmp_name']);     // gets image width and height

  $err = '';         // to store the errors

  // Checks if the file has allowed type, size, width and height (for images)

  if(!in_array($type, $allowtype)) $err .= 'The file: <b>'. $_FILES['fileup']['name']. '</b> not has the allowed extension type.';

  if($_FILES['fileup']['size'] > $max_size*1000) $err .= '<br/>Maximum file size must be: '. $max_size. ' KB.';

  if(isset($width) && isset($height) && ($width >= $alwidth || $height >= $alheight)) $err .= '<br/>The maximum Width x Height must be: '. $alwidth. ' x '. $alheight;

  // If no errors, upload the image, else, output the errors

  if($err == '') {

    if(move_uploaded_file($_FILES['fileup']['tmp_name'], $uploadpath)) { 

      echo 'File: <b>'. basename( $_FILES['fileup']['name']). '</b> successfully uploaded:';

      echo '<br/>File type: <b>'. $_FILES['fileup']['type'] .'</b>';

      echo '<br />Size: <b>'. number_format($_FILES['fileup']['size']/1024, 3, '.', '') .'</b> KB';

      if(isset($width) && isset($height)) echo '<br/>Image Width x Height: '. $width. ' x '. $height;

      echo '<br/><br/>Image address: <b>http://'.$_SERVER['HTTP_HOST'].rtrim(dirname($_SERVER['REQUEST_URI']), '\\\\/').'/'.$uploadpath.'</b>';

    }

    else echo '<b>Unable to upload the file.</b>';

  }

  else echo $err;

}

?> 

<div style="margin:1em auto; width:333px; text-align:center;">

 <form action="<?php echo $_SERVER['PHP_SELF']; ?>" method="POST" enctype="multipart/form-data"> 

  Upload File: <input type="file" name="fileup" /><br/>

  <input type="submit" name='submit' value="Upload" /> 

 </form>

</div>