我用PHP制作了一个年龄计算器。它在localhost/age/age-calculator.php

我已将此文件作为wp主题页模板移动theme/mytheme/page-template/age-calculator.php

<?php get_header();
/*
Template Name: Age Calculator
*/

输入表单工作正常，但在提交数据时。WordPress不会显示任何结果，也不会将我带到主页上。

但在localhost中，我在同一页上获得输入结果

如何在wp页面模板上显示结果？

谢谢

<form action="<?php echo htmlspecialchars($_SERVER["PHP_SELF"]);?>" method=\'post\'>
<div class="container bg-light p-2 wow bounceInUp">

    <div class="row">

        <div class="col-sm-6 mb-4">
    <p> Your Name * </p>
    <input type="text" name=\'person_1\' placeholder="Name" <?php echo "$required $all_required";?> />
    <p class="text-danger"> <?php echo " $nameErr ";?> </p>
    <br/>

    <p> Date of Birth * </p>
    <input type="date" name=\'birth_date\' <?php echo "$required $all_required";?> /> 
    <p class="text-danger"> <?php echo " $dateErr ";?> </p>
    <br/>

    <input  class="btn-success" type="submit" value=\'Calculate Yours Age\' name=\'submit_1\' /> <br/>

        </div>

        <div class="col-sm-6">
    <p> Your Friend\'s Name * </p>
    <input type="text" name=\'person_2\' placeholder= "Friend\'s Name " <?php echo "$all_required";?> />
    <p class="text-danger"> <?php echo " $nameErr2 ";?> </p>
    <br />

    <p> Your Friend\'s Date of birth * </p>
    <input type="date" name=\'birth_date_2\' <?php echo "$all_required";?> />
    <p class="text-danger">  <?php echo " $dateErr2 ";?> </p>
    <br /><br />

        </div>
    </div>
    <div class="row">
        <input class=\'m-auto btn btn-success p-2\' type="submit" value=\'Compare Age\' name=\'submit_all\' /> 
    </div>
</div>
</form>