php – 如何使用jquery ajax提供和获取数据？

我创建了一个jquery ajax请求,并尝试将一个变量传递给PHP来进行查询并将数据返回给实际的上下文.

处理ajax的实际上下文：

        $.ajax({
        type: 'post',
        url: 'show.PHP',
        data: {name: name},
        dataType: 'json',
        success: function(response) {
        //here I'd like back the PHP query
                    }

PHP：

$hostelName = $_POST['name'];

$sql = //here is the actual sql containing the $hostelname

$query = MysqL_query($sql);

$obj = MysqL_fetch_object($query);
$sum = $obj->sum;
$tour = $obj->tour;


echo json_encode(
array(
    "sum" => $sum,
    "tour" => $tour
    )
);

解决方法:

试试这个：

    $.ajax({
    type: 'post',
    url: 'show.PHP',
    data: "name="+ name,
    dataType: 'json',
    success: function(response) {
    //here I'd like back the PHP query
    }

和你的PHP代码：

    $hostelName =MysqL_escape_string($_POST['name']);

    $sql = //here is the actual sql containing the $hostelname

    $query = MysqL_query($sql);

    $reusult = MysqL_fetch_assoc($query);
    echo json_encode($reusult);