<?php
/**
 * Wraps content in <pre> tags. Useful for using with arrays of data.
 *
 * @version 1.0
 * @author Andrew Hart
 *
 * @param string $content The content to wrap in <pre> tags.
 */
function pre_wrap($data)
{
	echo '<pre>' . print_r($data, true) . '</pre>';
}
?>

<?php
/**
 * Wraps content in <pre> tags. Useful for using with arrays of data.
 *
 * @version 1.0
 * @author Andrew Hart
 *
 * @param string $content The content to wrap in <pre> tags.
 * @return string The content wrapped in <pre> tags.
 */
function pre_wrap($data)
{
	return '<pre>' . print_r($data, true) . '</pre>';
}
?>

Print recursive in pre-formatted tags

PHP