php - JQuery 用户名验证

Question

有人有使用 jquery 验证和 jquery addmethod 的用户名检查器的工作示例吗？

类似这样的事情:

$("#register_form").validate({
    onkeyup:false,
    rules: {
        username: {
            required: true,
            minlength: 3,
            usernameCheck: true    // remote check for duplicate username
        },
});

jQuery.validator.addMethod("usernameCheck", function(username) {
    var isSuccess = false;
    $.ajax({
        url: "username_availability.php",
        data: "username=" + username,
        async: false,
        type: "POST",
        success:
        function(msg) {
            isSuccess = parseInt(msg);
        }
    });
    return isSuccess;
},"");

我已经在 Google 上搜索了好几天了，我注意到许多类似的帖子没有得到答复或未得到解决，而且浏览次数很高。因此，如果有人可以提供链接或解决方案，我相信很多 JQuery 菜鸟都会受益并感到高兴。 :)

Hey guys, thanks a lot for all your help. I managed to find what I was looking for though.

The "milk example"? Really? It exists?

--Yes my son, it exists and it's awesome: http://jquery.bassistance.de/validate/demo/milk/

Answer 1

我认为你的问题是当你返回时成功方法没有被调用。您可以将代码更改为:

jQuery.validator.addMethod("usernameCheck", function(username) {
    var result = $.ajax({
        url: "username_availability.php",
        data: {username: username},
        async: false,
        type: "POST"
    }).responseText;
    return result === '1';
},"");