小编da-*_*ype的帖子

我正试图在以下情况下清空选择选项:

id"mClick"被选中,id的"sClick","cClick"和"srClick"将被清空.

id"sClick"被选中,id的"cClick"和"srClick"将被清空.

id"cClick"被选中,id"srClick"将被清空.

<form action="javascript:void(0);" method="POST" id="lForm">
<table>
    <tr>
        <td>
            <select name="module" id="mClick">
                <option value="">Select Mod</option>
                <option value="1">Mod 1</option>
                <option value="2">Mod 2</option>
                <option value="3">Mod 3</option>
            </select>
        </td>
        <td>
            <select name="state" id="sClick">
                <option value="">Select State</option>
                <option value="1">State 1</option>
                <option value="2">State 2</option>
            </select>
        </td>
        <td>
            <select name="city" id="cClick">
                <option value="">Select City</option>
                <option value="1">City 1</option>
                <option value="2">City 2</option>
            </select>
        </td>
        <td>
            <select name="services" id="srClick">
                <option value="">Select Services</option>
                <option value="1">Services 1</option>
                <option value="2">Services 2</option>
            </select>
        </td>
    </tr>
</table>

在方案3中,我使用了这个功能,但它删除了所有,除了最后一个选择.任何想法都是我错过的？谢谢

$('#lForm select[id!="mClick"] select[id!="sClick"] select[id!="cClick"] …

我创建了一个is_home_page()函数来检测用户是否在主页上,但我不知道我应该把它放在哪里,所以我可以在所有的视图和主题上使用？

function is_home_page() {
    $app = Yii::app();
    return $app->controller->route == $app->defaultController;
}

invalidHandler当有效输入完成后,如何获取jQuery Validate插件来更新错误计数器？

$(document).ready(function () {
    $("#report-listing-form").validate({
        rules: {
            'listing-report-email': {
                required: true,
                email: true
            },
                'listing-report-name': {
                required: true
            },
                'listing-report-phone': {
                number: true,
                minlength: 7,
                maxlength: 12
            },
                'contact-msg': {
                required: true,
                maxWords: 1000
            }
        },
        errorPlacement: function(error, element) {
            return false;  // will suppress error messages
        },
        invalidHandler: function (event, validator) {
            var errors = validator.numberOfInvalids();
            if (errors) {
                var message = (errors == 1) ? '1 invalid field.' : errors + ' invalid fields.';

                $("#err_report-listing-form").html(message).addClass("text-error");
            } …

知道为什么我不能在循环外回应$ a？我错过了什么？

while (list($a) = $db->fetch_array($query))
{
     $b = $a; //where $a = 10
}

echo $a; //this echo's nothing.
echo $b; //this echo's 10