How can PHP developers efficiently handle repeated blocks of HTML content within templates?

PHP developers can efficiently handle repeated blocks of HTML content within templates by using PHP's include or require functions to include separate files containing the repeated content. This allows for easier management of the HTML code and promotes code reusability. By breaking down the template into smaller, modular components, developers can easily update and maintain the codebase.

<?php
// header.php
include 'header.php';
?>

<!-- Main content -->
<div class="content">
    <h1>Welcome to our website</h1>
    <p>Lorem ipsum dolor sit amet, consectetur adipiscing elit.</p>
</div>

<?php
// footer.php
include 'footer.php';
?>