How can one ensure that included PHP files are executed at the correct location within a template using preg_replace in PHP?

When using preg_replace to include PHP files within a template, it's important to ensure that the included files are executed at the correct location in the template. To achieve this, you can use output buffering to capture the output of the included PHP file and then insert it into the template at the desired location.

$template = '<html><body>Content to be replaced</body></html>';
$included_file = 'included_file.php';

ob_start();
include $included_file;
$included_content = ob_get_clean();

$template = preg_replace('/Content to be replaced/', $included_content, $template);

echo $template;