Habari\MultiByte::lcfirst PHP Метод

    public static function lcfirst($str, $use_enc = null)
    {
        $enc = self::$hab_enc;
        if ($use_enc !== null) {
            $enc = $use_enc;
        }
        if (self::$use_library == self::USE_MBSTRING) {
            // get the first character
            $first = self::substr($str, 0, 1, $enc);
            // lowercase it
            $first = self::strtolower($first, $enc);
            // get the rest of the characters
            $last = self::substr($str, 1, null, $enc);
            // put them back together
            $ret = $first . $last;
        } else {
            // lcfirst() is php 5.3+ so we'll emulate it
            $first = substr($str, 0, 1);
            $first = strtolower($first);
            $last = substr($str, 1);
            $ret = $first . $last;
        }
        return $ret;
    }