当我们单击按钮在模型中显示post数据时，我们必须为特定模型目标提供带有数据属性的post id。

请在anchor tag和main div tag id中的数据目标中添加帖子id。

我已在此处修改了您的代码：

<div><?php echo wp_get_attachment_image($image_upload,$size = \'full\');?><br/>
  <span class="name"><?php echo $title; ?></span><span class="jobtitle"><?php echo $jobtitle; ?></span>
  <a onclick="return moreinfoModal(this);" id="<?php echo get_the_ID();?>" data-toggle="modal" data-target="#moreinfo-modal-<?php echo get_the_ID();?>" href="javascript:void(0);" class="info">more info</a>
</div>


<div id="moreinfo-modal-<?php echo get_the_ID();?>" class= "moreinfo-modal" role="dialog">
      <div class="teammember_div">
        <a id="close-moreinfo" onclick=\'return closeMoreInfoModal();\' href="javascript:void(0);"><img src="https://brentbrookbush.com/wp-content/themes/brent/images/svgs/icon.svg"></a>
        <?php echo wp_get_attachment_image($image_upload,$size = \'full\');?>
        <p><?php echo $title ?></p>
        <p><?php echo $about ?></p>
        <span class="jobtitle"><?php echo $jobtitle ?></span>

        <span id="moreinfo" style="display: inherit;"></span>
        <a id="modal-join" class="btn-cta" href="/sign-up/">Become a Member!</a>
      </div>
    </div>

<?php }?>
</div>
</div>

<script> function moreinfoModal(field) {
        console.log(field.id);
        $(\'.moreinfo-modal\').toggleClass(\'open\');
    }


    function closeMoreInfoModal() {
        $(\'.moreinfo-modal\').toggleClass(\'open\');
    }

    $(document).on(\'click\', \'.close-pill\', function(e) {
        $(this).parent().remove();
        e.preventDefault();
    });
    </script>