header("Content-type: text/html; charset=utf-8");//试着从数据库里读取一条数据放进来$con = mysql_connect("localhost","root","root");mysql_query("SET NAMES ‘utf8‘"); mysql_select_db("yun", $con);if (!$con){die(‘Could not connect: ‘ . mysql_error());}$s=mysql_query("select * from ofuser");while($ss = mysql_fetch_array($s)){$a[]=$ss[‘username‘];$b[]=$ss[‘phone‘];$c[]=$ss[‘nickname‘];}foreach ($a as $k => $r) {     $Arr4[] = array(‘username‘=>urlencode($a[$k]),‘phone‘=>$b[$k],‘nickname‘=>$c[$k]);}//print_r ($Arr4);echo urldecode(json_encode($Arr4));