Versione migliorata.

toto.php

<?php

function toto_rename( $action ) {

	switch ( $action ) :
		case 'home' :
			$directory = '/';
		break;

		case 'it' :
			$directory = '/it/';
		break;

		case 'en' :
			$directory = '/en/';
		break;

	endswitch;

	$old_name = '/home/rlswrtub/public_html' . $directory . '.maintenance.php';
	$new_name = '/home/rlswrtub/public_html' . $directory . '.maintenance';

	if ( rename( $old_name, $new_name ) === TRUE) {  
		echo 'File rinominato';
	}
}

toto_rename( 'home' );