json.php
<!DOCTYPE html Public "-//W3C//DTD XHTML 1.0 Transitional//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd">
<html xmlns="http://www.w3.org/1999/xhtml">
<head>
<meta http-equiv="Content-Type" content="text/html; charset=utf-8" />
<meta http-equiv="X-UA-Compatible" content="IE=EmulateIE8" />
<meta http-equiv="X-UA-Compatible" content="IE=8" />
<script src="js/jquery-1.7.2.min.js"></script>
<title>控制台</title>
<script type="text/javascript">
$(document).ready(function(){
// $.ajax({
// type: "POST",
// url: "receiveone.php",
// dataType: "json",
// data: "id=3",
// success: function(data){
// for(var p in data){//遍历json对象的每个key/value对,p为key
// $("select").append("<option value="+data[p].id+">"+data[p].testname+"</option>");
// }
// },
// error:function(){
// alert("F");
// return false;
// }
// });
$.post("receiveone.php",
{
id:3,
},
function(data,status){
for(var p in data){//遍历json对象的每个key/value对,p为key
$("select").append("<option value="+data[p].id+">"+data[p].testname+"</option>");
}
},"json");
});
</script>
</head>
<body>
<input type="text" />
<select name="test">
</select>
<div></div>
</body>
</html>
receiveone.php
<?php
$con = mysql_connect("localhost","root","");
if (!$con)
{
die('Could not connect: ' . mysql_error());
}
mysql_select_db("exam", $con);
// $id=$_POST["id"];
$result=mysql_query("select * from exam_test where subjectid='3'");
$i=0;
while($row = mysql_fetch_array($result))
{
$sum[$i]=$row;
$i++;
}
echo json_encode($sum);
mysql_close($con);
?>
除了数据库，亲测可行