<?php

/*
OneLobby
Copyright (C) 2007 Peter Goodman, Geoffrey Goodman

This program is free software; you can redistribute it and/or
modify it under the terms of the GNU General Public License
as published by the Free Software Foundation; either version 2
of the License, or (at your option) any later version.

This program is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
GNU General Public License for more details.

You should have received a copy of the GNU General Public License
along with this program; if not, write to the Free Software
Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA  02110-1301, USA.
*/

//--------------------------------------------
// Substring function that's multibyte string
// safe.
//--------------------------------------------

function substr_utf($str, $start = 0) 
{
	preg_match_all("/./su", $str, $ar);
	
	if(func_num_args() >= 3) 
	{
		$end = func_get_arg(2);
		$sub = join("", array_slice($ar[0], $start, $end));
	} 
	else 
	{
		$sub = join("", array_slice($ar[0], $start));
	}
	return $sub;
}

//--------------------------------------------
// String length function that's multibyte string
// safe.
//--------------------------------------------

function strlen_utf($string) 
{
	return strlen(utf8_decode($string));
}

?>