D8 and D7 template file syntax

D8-and-D7-theme-files.md

D8 and D7 template file syntax

Below are examples of basic structures you need in templating shown in Twig (Drupal 8) and PHPTemplate (Drupal 7).

Code Comments

{# My code comment, won't appear in the HTML #}

<?php // My code comment, won't appear in the HTML ?>

Print something

<p>
  Printing my variable: {{ my_variable }}
</p>

<p>
  Printing my variable: <?php print $my_variable; ?>
</p>

Result if my variable is set to hello world!:

<p>
  Printing my variable: hello world!
</p>

If statement

{% if (variable) %}
  <h1>My HTML</h1>
{% endif %}

<?php if ($variable): ?>
 <h1>My HTML</h1>
<?php endif; ?>

Setting and then Printing a variable in the middle of a string

{% set myContentId = 15 %}
<div id="node-{{ myContentId }}">

<?php $myContentId = 15; ?>
<div id="node-<?php print $myContentId; ?>">

Result: <div id="node-15">

Printing from the content array

{{ content.field_author }}

<?php print render($content['field_author']); ?>

Using a for statement to iterate over an array

{% for item in items %}
  <div{{ item.attributes }}>
    {{ item.content }}
  </div>
{% endfor %}

<?php foreach ($items as $delta => $item): ?>
  <div<?php print $item_attributes[$delta]; ?>>
    <?php print render($item); ?>
  </div>
<?php endforeach; ?>