PHP function to get the first letter of Chinese pinyin

PHP function to get the first letter of Chinese pinyin
Reprinted from www.54dev.com

=ord("A") && ord($fchar) return strtoupper($fchar);
 $str=iconv("UTF-8" ,"gb2312", $str);
 $asc=ord($str[0])*256+ord($str[1])-65536;
 if($asc>=-20319 and $asc if($asc>=-20283 and $asc if($asc>=-19775 and $asc if($asc>=-19218 and $asc if($asc>=-18710 and $asc if($asc> ;=-18526 and $asc if($asc>=-18239 and $asc if($asc>=-17922 and $ asc if($asc>=-17417 and $asc if($asc>=-16474 and $asc if($asc>=-16212 and $asc if($asc>=-15640 and $asc if($asc>=-15165 and $asc if($asc>=-14922 and $asc if($asc>= -14914 and $asc if($asc>=-14630 and $asc if($asc>=-14149 and $asc if($asc>=-14090 and $asc if($asc>=-13318 and $asc if($asc>=-12838 and $asc if($asc>=-12556 and $asc if( $asc>=-11847 and $asc if($asc>=-11055 and $asc return null;
}
echo getfirstchar ("Haha!");