$path = 'path.mp3';

 $path1 = 'path1.mp3';

 $mp3 = new PHPMP3($path);



 $newpath = 'path.mp3';

$mp3->striptags();



$mp3_1 = new PHPMP3($path1);

$mp3->mergeBehind($mp3_1);

  $mp3->striptags();



 $mp3->setIdv3_2('01','Track Title','Artist','Album','Year','Genre','Comments','Composer','OrigArtist','Copyright','url','encodedBy');



$mp3->save($newpath);