用于wordpress的php表单处理

Question

I am adding a form to my wordpress with a custom php page template

Below is my wordpress page template php code:

<?php
/*
Template Name: Form
*/
?>

<?php get_header(); ?>

<div id="content">

    <h1 class="page-title"><?php the_title(); ?></h1>

    <div class="entry">

        Welcome <?php echo $_POST["fname"]; ?>!<br>
You are <?php echo $_POST["age"]; ?> years old.

    </div> <!--end .entry-->

</div> <!--end #content-->

<?php get_sidebar(); ?>

<?php get_footer(); ?>

And I am including the following code from my page which shows the form

<form action="http://127.0.0.1:4001/wordpress/script" method="post">
Name: <input type="text" name="fname">
Age: <input type="text" name="age">
<input type="submit">
</form>

This will show the form data in a new page instead of showing the result on the same page. How can I show the result on same page?

I would like to have something like this:

Answer 1

Remove the action attribute from your form:

<form method="post">

UPDATE

Now, to keep data on your fields after form submit, just print them on its respective fields:

Name: <input type="text" name="fname" value="<?php if (isset($_POST["fname"])) echo $_POST["fname"]; ?>" />
Age: <input type="text" name="age" value="<?php if (isset($_POST["age"])) echo $_POST["age"]; ?>" />