php中文写入access数据库乱码问题

$(document).ready(function(){   $("#usersubmit").click(function(){           $.post("addsinger.php", {                        singername : $("#singername").val() ,                        area : $("#area").val() ,  					sex : $("#sex").val() , 				    singerimg : $("#singerimg").val() ,    					singercid : $("#singercid").val() ,   					singerfirstword : $("#singerfirstword").val()                    }, function (data, textStatus){            if(data=="success"){						window.location.reload()						}                }           );      })  });

$singername=$_POST['singername'];$area=$_POST['area'];$sex=$_POST['sex'];$singercid=$_POST['singercid'];$singerimg=$_POST['singerimg'];$singerfirstword=$_POST['singerfirstword'];$connstr="DRIVER=Microsoft Access Driver (*.mdb);DBQ=".realpath("../mtv.mdb");$conn=odbc_connect($connstr,"","",SQL_CUR_USE_ODBC );$sql = "INSERT INTO singer (singer,singerarea,singersex,singercid,singerimg,singerfirstword) VALUES ('$singername','$area','$sex','$singercid','$singerimg','$singerfirstword')";$rs=odbc_do($conn,$sql);echo "success";