js에서 배열을 가져오고 PHP 배열을 처리하는 방법

	$music=array();
	$music['tayler']=array();
	$music['walker']=array();
	
	$music['tayler'][]='ours';
	$music['tayler'][]='style';
	$music['tayler'][]='red';
	
	$music['walker'][]='all fall down';
	$music['walker'][]='faded';
	$str=json_encode($music);

				<script type="text/javascript">
					function changesinger(va,data){
						var second = document.getElementById("second-data");
						while(obj=second[0]){
							obj.remove();
						}
						<!-- var data=eval(<?php echo json_encode($music);?>);   -->
						<!-- var data=<?php echo $str;?>; -->
						var data={$str};
						for(var i=0;i<data[va].length;i++){
							var opt=document.createElement("OPTION");
							opt.text=data[va][i];
							second.add(opt); 
						}
						
					}
				</script>