Include HTML markup from another file inside PHP file - php

Question

So this is the method that I am using and it's kinda working, but I don't think that it's best practice and just seems kinda off, so I wanted to see if someone knew a much better and/or cleaner method on importing HTML markup that will be located in two locations.
So let's say that I have my main index.php file:
$mode = get_field('mode');
<?php if ($mode == 'page'): ?>
<div class="container my-4 <?= $class_name?>">
<div class="row justify-content-md-center pardot-form">
<div class="col-md-6 col-lg-6">
<h3>Pardot Form</h3>
<?php include_once 'pardot-form.php'?>
</div>
</div>
</div>
<?php else: ?>
<div class="modal_element" data-toggle="modal" data-target="#modal-<?= $id ?>" data-cookie="<?= get_field('cookie'); ?>"></div>
<div class="modal fade" id="modal-<?= $id ?>" tabindex="-1" role="dialog" aria-hidden="true">
<div class="modal-dialog modal-dialog-centered">
<div class="modal-content">
<div class="modal-header">
<h5 class="modal-title" id="exampleModalLabel">Pardot Form</h5>
<button type="button" class="close" data-dismiss="modal" aria-label="Close">
<span aria-hidden="true">✕</span>
</button>
</div>
<div class="modal-body">
<?php include_once 'pardot-form.php'?>
</div>
</div>
</div>
</div>
<?php endif; ?>
Then I am calling <?php include_once 'pardot-form.php'?> in two locations because I don't want to repeat the same HTML output twice, so the pardot-form.php file contains the following:
<form class="form">
<div class="form-group">
<label for="formGroupExampleInput">First Name:</label>
<input type="text" class="form-control" id="formGroupExampleInput" placeholder="Example input placeholder">
</div>
<div class="form-group">
<label for="formGroupExampleInput2">Last Name:</label>
<input type="text" class="form-control" id="formGroupExampleInput2" placeholder="Another input placeholder">
</div>
<div class="my-3">
<button type="submit" class="btn btn-primary" disabled>Submit</button>
</div>
</form>
Is there a cleaner way to "Grab HTML markup and append it in two locations", the only difference is the outer layer where one conditional is a container block and another is a modal.
I can even delete the pardot-form.php file and add in the HTML markup in the same index.php file if you know of a cleaner way.
All help is appreciated!

Answer 1

You could save include_once 'pardot-form.php' to a variable under the $mode = get_field('mode'); declaration and then use it wherever you want.