3.7、Ascii转拼音

/**
 * Ascii转拼音
 * @param $asc
 * @param $pyarr
 */
function asc_to_pinyin($asc,&$pyarr) {
   if($asc < 128)return chr($asc);
   elseif(isset($pyarr[$asc]))return $pyarr[$asc];
   else {
      foreach($pyarr as $id => $p) {
         if($id >= $asc)return $p;
      }
   }
}