Are there alternative methods to str_replace for modifying content in an included file in PHP?

When modifying content in an included file in PHP, an alternative method to using str_replace is to use output buffering. Output buffering allows you to capture the output of included files and modify it before sending it to the browser.

<?php
ob_start();
include 'included_file.php';
$content = ob_get_clean();

// Modify the content as needed
$content = str_replace('old_text', 'new_text', $content);

echo $content;
?>