php怎样实现获取汉字首字母的功能�

Admin 2021-05-28 群英技术资�

       这篇文章给大家分享PHP函数的应用,主要介绍php如何实现获取汉字首字母功能代码,具有一定的借鉴参考价值,感兴趣的朋友不妨看看,下面就跟随小编一起来了解一下吧�

//获取汉字的首字母
function getFirstCharters($str)
{
  if (empty($str)) {
    return '';
  }
  //取出参数字符串中的首个字�
  $temp_str = substr($str,0,1);
  if(ord($temp_str) > 127){
    $str = substr($str,0,3);
  }else{
    $str = $temp_str;
    $fchar = ord($str{0});
    if ($fchar >= ord('A') && $fchar <= ord('z')){
      return strtoupper($temp_str);
    }else{
      return null;
    }
  }
  $s1 = iconv('UTF-8', 'gb2312//IGNORE', $str);
  if(empty($s1)){
    return null;
  }
  $s2 = iconv('gb2312', 'UTF-8', $s1);
  if(empty($s2)){
    return null;
  }
  $s = $s2 == $str ? $s1 : $str;
  $asc = ord($s{0}) * 256 + ord($s{1}) - 65536;
  if ($asc >= -20319 && $asc <= -20284)
    return 'A';
  if ($asc >= -20283 && $asc <= -19776)
    return 'B';
  if ($asc >= -19775 && $asc <= -19219)
    return 'C';
  if ($asc >= -19218 && $asc <= -18711)
    return 'D';
  if ($asc >= -18710 && $asc <= -18527)
    return 'E';
  if ($asc >= -18526 && $asc <= -18240)
    return 'F';
  if ($asc >= -18239 && $asc <= -17923)
    return 'G';
  if ($asc >= -17922 && $asc <= -17418)
    return 'H';
  if ($asc >= -17417 && $asc <= -16475)
    return 'J';
  if ($asc >= -16474 && $asc <= -16213)
    return 'K';
  if ($asc >= -16212 && $asc <= -15641)
    return 'L';
  if ($asc >= -15640 && $asc <= -15166)
    return 'M';
  if ($asc >= -15165 && $asc <= -14923)
    return 'N';
  if ($asc >= -14922 && $asc <= -14915)
    return 'O';
  if ($asc >= -14914 && $asc <= -14631)
    return 'P';
  if ($asc >= -14630 && $asc <= -14150)
    return 'Q';
  if ($asc >= -14149 && $asc <= -14091)
    return 'R';
  if ($asc >= -14090 && $asc <= -13319)
    return 'S';
  if ($asc >= -13318 && $asc <= -12839)
    return 'T';
  if ($asc >= -12838 && $asc <= -12557)
    return 'W';
  if ($asc >= -12556 && $asc <= -11848)
    return 'X';
  if ($asc >= -11847 && $asc <= -11056)
    return 'Y';
  if ($asc >= -11055 && $asc <= -10247)
    return 'Z';
  return rare_words($asc);
}
//百家姓中的生僻字
function rare_words($asc=''){
  $rare_arr = array(
    -3652=>array('word'=>"�",'first_char'=>'D'),
    -8503=>array('word'=>"�",'first_char'=>'X'),
    -9286=>array('word'=>"�",'first_char'=>'F'),
    -7761=>array('word'=>"�",'first_char'=>'C'),
    -5128=>array('word'=>"�",'first_char'=>'T'),
    -9479=>array('word'=>"�",'first_char'=>'W'),
    -5456=>array('word'=>"�",'first_char'=>'Z'),
    -7223=>array('word'=>"�",'first_char'=>'M'),
    -2877=>array('word'=>"�",'first_char'=>'Q'),
    -6191=>array('word'=>"�",'first_char'=>'M'),
    -5414=>array('word'=>"�",'first_char'=>'B'),
    -4102=>array('word'=>"�",'first_char'=>'J'),
    -8969=>array('word'=>"荀",'first_char'=>'X'),
    -4938=>array('word'=>"�",'first_char'=>'Y'),
    -9017=>array('word'=>"�",'first_char'=>'R'),
    -2848=>array('word'=>"�",'first_char'=>'Y'),
    -9477=>array('word'=>"�",'first_char'=>'B'),
    -9485=>array('word'=>"�",'first_char'=>'K'),
    -6731=>array('word'=>"�",'first_char'=>'M'),
    -9299=>array('word'=>"�",'first_char'=>'X'),
    -5905=>array('word'=>"�",'first_char'=>'L'),
    -4393=>array('word'=>"�",'first_char'=>'T'),
    -9300=>array('word'=>"�",'first_char'=>'G'),
    -8706=>array('word'=>"�",'first_char'=>'L'),
    -3613=>array('word'=>"�",'first_char'=>'X'),
    -8777=>array('word'=>"�",'first_char'=>'S'),
    -6708=>array('word'=>"�",'first_char'=>'P'),
    -9302=>array('word'=>"�",'first_char'=>'L'),
    -5965=>array('word'=>"�",'first_char'=>'Q'),
    -6745=>array('word'=>"�",'first_char'=>'P'),
    -4888=>array('word'=>"�",'first_char'=>'H'),
    -9309=>array('word'=>"�",'first_char'=>'J'),
    -5428=>array('word'=>"�",'first_char'=>'Y'),
    -2849=>array('word'=>"�",'first_char'=>'J'),
    -7206=>array('word'=>"�",'first_char'=>'Q'),
    -4945=>array('word'=>"�",'first_char'=>'S'),
    -9753=>array('word'=>"�",'first_char'=>'K'),
    -10041=>array('word'=>"�",'first_char'=>'S'),
    -5429=>array('word'=>"�",'first_char'=>'C'),
    -2396=>array('word'=>"�",'first_char'=>'Z'),
    -7205=>array('word'=>"�",'first_char'=>'K'),
    -10049=>array('word'=>"�",'first_char'=>'N'),
    -10015=>array('word'=>"�",'first_char'=>'K'),
    -3133=>array('word'=>"�",'first_char'=>'Z'),
    -6698=>array('word'=>"�",'first_char'=>'L'),
    -9799=>array('word'=>"�",'first_char'=>'Q'),
    -6749=>array('word'=>"�",'first_char'=>'T'),
    -7220=>array('word'=>"�",'first_char'=>'L'),
    -10047=>array('word'=>"�",'first_char'=>'Q'),
    -10005=>array('word'=>"�",'first_char'=>'Z'),
    -3417=>array('word'=>"�",'first_char'=>'Z'),
    -6431=>array('word'=>"�",'first_char'=>'S'),
    -7226=>array('word'=>"�",'first_char'=>'Y'),
    -9293=>array('word'=>"�",'first_char'=>'Y'),
    -6205=>array('word'=>"�",'first_char'=>'G'),
    -9764=>array('word'=>"�",'first_char'=>'S'),
    -9818=>array('word'=>"�",'first_char'=>'N'),
    -9509=>array('word'=>"�",'first_char'=>'Q'),
    -3122=>array('word'=>"�",'first_char'=>'D'),
    -9823=>array('word'=>"�",'first_char'=>'T'),
  );
  if(array_key_exists($asc, $rare_arr) && $rare_arr[$asc]['first_char']){
    return $rare_arr[$asc]['first_char'] ;
  }else{
    return null;
  }
}
//测试�
echo getFirstCharters('�');
 

       运行结果�

D

       以上就是关于php实现获取汉字首字母的介绍,上述所介绍函数小编觉得还是比较实用的,需要的朋友可以参考代码了解一下,希望本文对大家有帮助�

文本转载自脚本之�

免责声明:本站发布的内容(图片、视频和文字)以原创、转载和分享为主,文章观点不代表本网站立场,如果涉及侵权请联系站长邮箱:[email protected]进行举报,并提供相关证据,查实之后,将立刻删除涉嫌侵权内容�

猜你喜欢

群英网络开启智能安全云计算之旅

注册领取新人大礼�
专业资深工程师驻�
7X24小时快速响�
一站式无忧技术支�
免费备案服务

联系我们

24小时售后 24小时售后TEL�0668-2555666 售前咨询TEL�400-678-4567 投诉建议TEL�0668-2555999 投诉建议邮箱:t[email protected] 信息安全TEL�0668-2555118 域名空间客服 公司总机�0668-2555555 公司传真�0668-2555000
免费拨打  400-678-4567
免费拨打  400-678-4567 免费拨打 400-678-4567 � 0668-2555555
在线客服
微信公众号
返回顶部
返回顶部 返回顶部