$py = $this->zh_to_pys($chinese, $delimiter);
       if($length) {
           $py = substr($py, 0, $length);
       }
       return $py;
    }
    //拼音首个字母
    public function getFirstPY($chinese){
       $result = '' ;
       for ($i=0; $i<strlen($chinese); $i++) {
           $p = ord(substr($chinese,$i,1));
           if ($p>160) {
              $q = ord(substr($chinese,++$i,1));
              $p = $p*256 + $q - 65536;
           }
           $result .= substr($this->zh_to_py($p),0,1);
       }
       return $result ;
    }
  
 
    //-------------------中文转拼音--------------------------------//
    private function zh_to_py($num, $blank = '') {
       if($num>0 && $num<160 ) {
           return chr($num);
       } elseif ($num<-20319||$num>-10247) {
           return $blank;
       } else {
           foreach ($this->pylist as $py => $code) {
              if($code > $num) break;
              $result = $py;
           }
           return $result;
       }
    }
  
 
    private function zh_to_pys($chinese, $delimiter = ' ', $first=0){
       $result = array();
       for($i=0; $i<strlen($chinese); $i++) {
           $p = ord(substr($chinese,$i,1));
           if($p>160) {
              $q = ord(substr($chinese,++$i,1));
              $p = $p*256 + $q - 65536;
           }
           $result[] = $this->zh_to_py($p);
           if ($first) {
              return $result[0];
           }
       }
       return implode($delimiter, $result);
    }
}
?>

//测试 $PingYing = new GetPingYing(); echo '<br>',$PingYing->getFirstPY('免费模版网'),'<br>';//mfmbw echo $PingYing->getAllPY('羽免费模版网'),'<br>'; //mianfeimubanwang