class.ilStr.php

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<?php
/*
+-----------------------------------------------------------------------------+
| ILIAS open source                                                           |
+-----------------------------------------------------------------------------+
| Copyright (c) 1998-2005 ILIAS open source, University of Cologne            |
|                                                                             |
| 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., 59 Temple Place - Suite 330, Boston, MA  02111-1307, USA. |
+-----------------------------------------------------------------------------+
*/


class ilStr
{
        function subStr($a_str, $a_start, $a_length = NULL)
        {
                if (function_exists("mb_substr"))
                {
                        return mb_substr($a_str, $a_start, $a_length, "UTF-8");
                }
                else
                {
                        return substr($a_str, $a_start, $a_length);
                }
        }
        
        function strPos($a_haystack, $a_needle, $a_offset = NULL)
        {
                if (function_exists("mb_strpos"))
                {
                        return mb_strpos($a_haystack, $a_needle, $a_offset, "UTF-8");
                }
                else
                {
                        return strpos($a_haystack, $a_needle, $a_offset);
                }               
        }
        
        function strLen($a_string)
        {
                if (function_exists("mb_strlen"))
                {
                        return mb_strlen($a_string, "UTF-8");
                }
                else
                {
                        return strlen($a_string);
                }               
        }

        function strToLower($a_string)
        {
                if (function_exists("mb_strtolower"))
                {
                        return mb_strtolower($a_string, "UTF-8");
                }
                else
                {
                        return strtolower($a_string);
                }               
        }

        function strToUpper($a_string)
        {
                if (function_exists("mb_strtoupper"))
                {
                        return mb_strtoupper($a_string, "UTF-8");
                }
                else
                {
                        return strtoupper($a_string);
                }               
        }

} // END class.ilUtil
?>