javascript - 从 HTML 数据 ID 获取 PHP 变量值

Question

我问了a question今天早些时候，简而言之，它询问用户何时单击页面上的按钮——出现一个弹出模式，它应该获得一个 PHP 变量值。

由于单击弹出模式 btn 时没有 GET 或 POST 请求，这意味着我无法使用上述两个选项获取变量值

尝试了以下方法:

`<a id="myid" data-id="<?php echo $userID ?>">link</a>
<script>
  $('#myid').data("id");
</script>`

现在我在 javascript 变量中有了 PHP $userID 值。这引出了我的问题，什么是检索 $userID 变量并将其插入 php 变量的最有效方法。

附加信息

我found this question在 SO 上，但它并不真正适用于我。

我试图实现的示例图像

循环生成的 PHP 列表

$teacherClass = new TeacherSearch();
            $teachers = $teacherClass->showAllTeachers();
            if (is_array($teachers)) {
            foreach ($teachers as $teacher) {
                 $src = $teacher['userID'];
<div class="teacher-info">
                        <p class="teacherLabel">
                            NAME:
                            <?php
                            echo $teacher['name'];
                            ?>
                        </p>

                        <p class="teacherLabel">
                            HEADLINE:
                            <?php
                            echo $teacher['headline'];
                            ?>

                        <p class="teacherLabel">
                            LOCATION:
                            <?php
                            echo $teacher['location']
                            ?>
                        </p>
                       <!--BUTTON GOES HERE-->
 <a id="myid" data-id="<?php echo $teacher['userID'] ?>" data-toggle="modal" data-target="#myModal">Hire <?php echo $teacher['name'] ?></a>
                        }//foreach

示例 IMG

模态

<!-- Trigger the modal with a button -->
<!-- Modal -->
<div id="myModal" class="modal fade" role="dialog">
    <div class="modal-dialog">

        <!-- Modal content-->
        <div class="modal-content">
            <div class="modal-header">
                <button type="button" class="close" data-dismiss="modal">&times;</button>
                <h4 id="modalTitle" class="modal-title"></h4>
            </div>
            <div class="modal-body">
                Need to perform PHP here with $userID variable
            </div>
            <div class="modal-footer">
                <button type="button" class="btn btn-default" data-dismiss="modal">Close</button>
            </div>
        </div>

    </div>
</div>

Answer 1

首先，删除id="myId"来自 <a></a> . ID 必须是唯一的。使用类。

First_Page.php

<?php
$teacherClass = new TeacherSearch();
$teachers = $teacherClass->showAllTeachers();
if (is_array($teachers)) {
  foreach ($teachers as $teacher) {
    $src = $teacher['userID'];
    ?>
    <div class="teacher-info">
      <p class="teacherLabel">
        NAME:<?php echo $teacher['name']; ?>
      </p>
      <p class="teacherLabel">
        HEADLINE:
        <?php echo $teacher['headline'];?>
      </p>
      <p class="teacherLabel">
        LOCATION: <?phpecho $teacher['location'];?>
      </p>
      <!--BUTTON GOES HERE-->
      <a class="openModal" data-id="<?php echo $teacher['userID'] ?>" data-toggle="modal" href="#myModal">
        Hire <?php echo $teacher['name']; ?>
      </a>
    </div>
  <?php }
}?>

在 </body> 结束前的页脚中放入以下代码标签。

<div id="myModal" class="modal fade" role="dialog">
  <div class="modal-dialog">
    <div class="modal-content">

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

JS

<script>
  $('.openModal').click(function(){
      var id = $(this).attr('data-id');
      $.ajax({url:"modal_ajax.php?id="+id,cache:false,success:function(result){
          $(".modal-content").html(result);
      }});
  });
</script>

创建一个新文件modal_ajax.php。

[注意:请记住，此页面名称 modal_ajax.php 也用在脚本标记中。如果您打算更改此页面的名称，也请在脚本标记中更改页面名称。两者都是相关的。]

<div class="modal-header">
  <button type="button" class="close" data-dismiss="modal">&times;</button>
  <h4 id="modalTitle" class="modal-title"></h4>
</div>
<div class="modal-body">
  <?php echo "ID: ".$_GET['id'];?>
</div>
<div class="modal-footer">
  <button type="button" class="btn btn-default" data-dismiss="modal">Close</button>
</div>

已经回答过类似的问题。请看Passing data via Modal Bootstrap and getting php variable?