javascript - 如何使用JQuery获取GET和POST变量？(how to get GET and POST variables with JQuery?)

Question

How do I simply get GET and POST values with JQuery?

(如何使用JQuery简单地获取GET和POST值？)

What I want to do is something like this:

(我想做的是这样的：)

$('#container-1 > ul').tabs().tabs('select', $_GET('selectedTabIndex'));

  ask by Edward Tanguay translate from so

Answer 1

For GET parameters, you can grab them from document.location.search :

(对于GET参数，您可以从document.location.search获取它们：)

var $_GET = {};

document.location.search.replace(/??(?:([^=]+)=([^&]*)&?)/g, function () {
    function decode(s) {
        return decodeURIComponent(s.split("+").join(" "));
    }

    $_GET[decode(arguments[1])] = decode(arguments[2]);
});

document.write($_GET["test"]);

For POST parameters, you can serialize the $_POST object in JSON format into a <script> tag:

(对于POST参数，您可以将JSON格式的$_POST对象序列化为<script>标记：)

<script type="text/javascript">
var $_POST = <?php echo json_encode($_POST); ?>;

document.write($_POST["test"]);
</script>

While you're at it (doing things on server side), you might collect the GET parameters on PHP as well:

(当你在它（在服务器端做事）时，你也可以在PHP上收集GET参数：)

var $_GET = <?php echo json_encode($_GET); ?>;

Note: You'll need PHP version 5 or higher to use the built-in json_encode function.

(注意：您需要PHP 5或更高版本才能使用内置的json_encode函数。)

---

Update: Here's a more generic implementation:

(更新：这是一个更通用的实现：)

function getQueryParams(qs) {
    qs = qs.split("+").join(" ");
    var params = {},
        tokens,
        re = /[?&]?([^=]+)=([^&]*)/g;

    while (tokens = re.exec(qs)) {
        params[decodeURIComponent(tokens[1])]
            = decodeURIComponent(tokens[2]);
    }

    return params;
}

var $_GET = getQueryParams(document.location.search);