ucfirst.php

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<?php
/**
* @version $Id$
* @package utf8
* @subpackage strings
*/

//---------------------------------------------------------------
/**
* UTF-8 aware alternative to ucfirst
* Make a string's first character uppercase
* Note: requires utf8_strtoupper
* @param string
* @return string with first character as upper case (if applicable)
* @see http://www.php.net/ucfirst
* @see utf8_strtoupper
* @package utf8
* @subpackage strings
*/
function utf8_ucfirst($str){
    switch ( utf8_strlen($str) ) {
        case 0:
            return '';
        break;
        case 1:
            return utf8_strtoupper($str);
        break;
        default:
            preg_match('/^(.{1})(.*)$/us', $str, $matches);
            return utf8_strtoupper($matches[1]).$matches[2];
        break;
    }
}