//新添加获取汉子首字，首字字母    function pinyin($zh){           if(empty($zh)){                       return ‘‘;               }           $s1 = iconv("UTF-8","gb2312", $zh);           $s2 = iconv("gb2312","UTF-8", $s1);//将字符串的编码从GB2312转到UTF-8            if($s2 == $zh){$zh = $s1;}           $s1 = substr($zh,0,1);           $p = ord($s1);           if($p > 160){               $s2   = substr($zh,0,2);               return strtoupper(self::getfirstchar($s2));           }else{               return strtoupper($s1);           }    }    function getfirstchar($s0){           $fchar = ord($s0{0});           if($fchar >= ord("A") and $fchar <= ord("z") )return strtoupper($s0{0});           $s1 = self::get_encoding($s0,‘GB2312‘);           $s2 = self::get_encoding($s1,‘UTF-8‘);           if($s2 == $s0){$s = $s1;}else{$s = $s0;}           $asc = ord($s{0}) * 256 + ord($s{1}) - 65536;           if($asc >= -20319 and $asc <= -20284) return "A";           if($asc >= -20283 and $asc <= -19776) return "B";           if($asc >= -19775 and $asc <= -19219) return "C";           if($asc >= -19218 and $asc <= -18711) return "D";           if($asc >= -18710 and $asc <= -18527) return "E";           if($asc >= -18526 and $asc <= -18240) return "F";           if($asc >= -18239 and $asc <= -17923) return "G";           if($asc >= -17922 and $asc <= -17418) return "H";           if($asc >= -17417 and $asc <= -16475) return "J";           if($asc >= -16474 and $asc <= -16213) return "K";           if($asc >= -16212 and $asc <= -15641) return "L";           if($asc >= -15640 and $asc <= -15166) return "M";           if($asc >= -15165 and $asc <= -14923) return "N";           if($asc >= -14922 and $asc <= -14915) return "O";           if($asc >= -14914 and $asc <= -14631) return "P";           if($asc >= -14630 and $asc <= -14150) return "Q";           if($asc >= -14149 and $asc <= -14091) return "R";           if($asc >= -14090 and $asc <= -13319) return "S";           if($asc >= -13318 and $asc <= -12839) return "T";           if($asc >= -12838 and $asc <= -12557) return "W";           if($asc >= -12556 and $asc <= -11848) return "X";           if($asc >= -11847 and $asc <= -11056) return "Y";           if($asc >= -11055 and $asc <= -10247) return "Z";           return null;   }