Nested sprintf() / vsprintf with gettext example

vsprintf.php

<?php
/**
 * Example of sprintf()/vsprintf() with gettext
 */

/**
 * String translation
 * 
 * @param string $param String to translate
 * @return string Translated string (surrounded by square brackets for visibility)
 */
function __($param) { 
	return '[' . $param . ']'; 
}

// Substring
$googleLink = sprintf('<a href="%s">%s</a>', 'http://www.google.com', __('Google'));

// Main string formatting with variable parameters count
$params = array('Leonid', $googleLink);
$message = vsprintf(__("Welcome, %s! Click on %s to finish."), $params);

echo $message;

?>