javascript - 如何使用 GET 方法将 id 传递给同一页面中的模式？

Question

我有以下链接:

<a type="button" class="btn btn-primary" data-toggle="modal"
                                    data-target="#product_view" href="?id='.$row['upcoming_event_id'].'">
                                    <i class="fa fa-search"></i> Read more</a>

阅读更多内容如下所示:

当我按下阅读更多按钮时，会弹出一个模态框，如下所示:

我尝试了以下代码，但它不起作用:

<div class="modal fade product_view" id="product_view">
    <div class="modal-dialog">
        <div class="modal-content">
            <div class="modal-header">
                <a href="#" data-dismiss="modal" class="class pull-right"><span
                            class="glyphicon glyphicon-remove"></span></a>
                <h3 class="modal-title">I want to show the event id here <?php echo $_GET['id']; ?></h3>
            </div>

            </div>
        </div>
    </div>
</div>
</div>

如何解决？还是有更好的方法来做到这一点？我必须将 id 显示到模式中，而不是在另一个页面上。任何帮助将不胜感激。提前致谢。

Answer 1

PHP 代码先执行，因此您不能为 $_GET 设置 PHP 值动态地。使用 javascript 函数。

function setEventId(event_id){
    document.querySelector("#event_id").innerHTML = event_id;
}

调用setEventId()来自 anchor 标签的功能

<a type="button" onclick="setEventId(<?= $row['upcoming_event_id'] ?>)" class="btn btn-primary" data-toggle="modal"
                                    data-target="#product_view" href="javascript:void(0)">
                                    <i class="fa fa-search"></i> Read more</a>

并使用 <span id="event_id"></span>用 event_id 替换 html 值

<div class="modal fade product_view" id="product_view">
    <div class="modal-dialog">
        <div class="modal-content">
            <div class="modal-header">
                <a href="#" data-dismiss="modal" class="class pull-right"><span
                            class="glyphicon glyphicon-remove"></span></a>
                <h3 class="modal-title">I want to show the event id here <span id="event_id"></span></h3>
            </div>

            </div>
        </div>
    </div>
</div>
</div>

这是获取 $row['upcoming_event_id'] 值后的演示示例或页面加载。

function setEventId(event_id){
    document.querySelector("#event_id").innerHTML = event_id;
}

<script src="https://ajax.googleapis.com/ajax/libs/jquery/2.1.1/jquery.min.js"></script>
<script src="https://cdnjs.cloudflare.com/ajax/libs/twitter-bootstrap/4.0.0/js/bootstrap.js"></script>
<link rel="stylesheet" href="https://stackpath.bootstrapcdn.com/bootstrap/4.0.0/css/bootstrap.min.css">
<a type="button" onclick="setEventId(1)" class="btn btn-primary" data-toggle="modal"
                                    data-target="#product_view" href="javascript:void(0)">
                                    <i class="fa fa-search"></i> Read more</a>
                                    
<a type="button" onclick="setEventId(2)" class="btn btn-primary" data-toggle="modal"
                                    data-target="#product_view" href="javascript:void(0)">
                                    <i class="fa fa-search"></i> Read more</a>
                                    
                                    
<a type="button" onclick="setEventId(3)" class="btn btn-primary" data-toggle="modal"
                                    data-target="#product_view" href="javascript:void(0)">
                                    <i class="fa fa-search"></i> Read more</a>
                                    
<div class="modal fade product_view" id="product_view">
    <div class="modal-dialog">
        <div class="modal-content">
            <div class="modal-header">
                <a href="#" data-dismiss="modal" class="class pull-right"><span
                            class="glyphicon glyphicon-remove"></span></a>
                <h3 class="modal-title">I want to show the event id here <span id="event_id"></span></h3>
            </div>

            </div>
        </div>
    </div>