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Home  >  Article  >  Backend Development  >  PHP Chinese character transcoding GBK->Unicode (UTF8) encoding conversion

PHP Chinese character transcoding GBK->Unicode (UTF8) encoding conversion

WBOY
WBOYOriginal
2016-07-25 08:53:531579browse
  2. //php汉字转码 GBK->Unicode(UTF8)
  3. class qswhGBK{
  4. var $qswhData;
  5. function qswhGBK($filename="qswhGBK.php"){
  6. $this->qswhData=file($filename);
  7. }
  8. function gb2u($gb,$callback=""){
  9. /******(qiushuiwuhen 2002-8-15)******/
  10. $ret="";
  11. for($i=0;$i if(($p=ord(substr($gb,$i,1)))>127){
  13. $q=ord(substr($gb,++$i,1));
  14. $q=($q-($q>128?65:64))*4;
  15. $q=substr($this->qswhData[$p-128],$q,4);
  16. }
  17. else
  18. $q=dechex($p);
  19. if(empty($callback))
  20. $ret.=$q;
  21. else {
  22. $arr=array("htmlHex","htmlDec","escape","u2utf8");
  23. if(is_integer($callback)){
  24. if($callback>count($arr))die("Invalid Function");
  25. $ret.=$this->$arr[$callback-1]($q);
  26. }else
  27. $ret.=$callback($q);
  28. }
  29. }
  30. return $ret;
  31. }
  33. function htmlHex($str){
  34. return "".$str.";";
  35. } // 程序员之家 bbs.it-home.org
  37. function htmlDec($str){
  38. return "".hexdec($str).";";
  39. }
  41. function escape($str){
  42. return hexdec($str)<256?chr(hexdec($str)):"%u".$str;
  43. }
  45. function u2utf8($str){
  46. /******(qiushuiwuhen 2002-8-15)******/
  47. $sp="!'()*-.0123456789ABCDEFGHIJKLMNOPQRSTUVWXYZ_abcdefghijklmnopqrstuvwxyz~";
  48. $dec=hexdec($str);
  49. $bin=decbin($dec);
  50. $len=strlen($bin);
  51. $arr=array("c0","e0","f0");
  52. if($dec>0x7f){
  53. $ret="";
  54. for($i=$len,$j=-1;$i>=0;$i-=6,$j++){
  55. if($i>6)
  56. $ret="%".dechex(0x80+bindec(substr($bin,$i-6,6))).$ret;
  57. else
  58. $ret="%".dechex(hexdec($arr[$j])+bindec(substr($bin,0,6-$i))).$ret;
  59. }
  60. }else{
  61. if(strpos($sp,chr($dec)))
  62. $ret=chr($dec);
  63. else
  64. $ret="%".strtolower($str);
  65. }
  66. return $ret;
  67. }
  68. }
复制代码

调用例子：

  3. $words="中文Abc";

  4. function ex($str){return "[".$str."]";}

  5. $qswh=new qswhGBK("qswhGBK.php");//如果文件名是qswhGBK.php,可省参数

  6. echo("

    不带参数:".$qswh->gb2u($words));</li> <li>echo("/n调用内置函数htmlHex:".$qswh->gb2u($words,1));</li> <li>echo("/n调用内置函数htmlDec:".$qswh->gb2u($words,2));</li> <li>echo("/n调用内置函数escape:".$qswh->gb2u($words,3));</li> <li>echo("/n调用内置函数u2utf8:".$qswh->gb2u($words,4));</li> <li>echo("/n调用自定义函数:".$qswh->gb2u($words,ex));</p></li> <li> </ol></div> <em onclick="copycode($('code_sd4'));">复制代码</em> </div> <p>效果： </p> 不带参数:4E2D6587416263 调用内置函数htmlHex:中文Abc 调用内置函数htmlDec:中文Abc 调用内置函数escape:%u4E2D%u6587Abc 调用内置函数u2utf8:%e4%b8%ad%e6%96%87Abc 调用自定义函数:[4E2D][6587][41][62][63]</td></tr></table> <div id="comment_46856" class="cm"> </div> <div id="post_rate_div_46856"></div> <br><br></div><div class="nphpQianMsg"><div class="clear"></div></div><div class="nphpQianSheng"><span>Statement：</span><div>The content of this article is voluntarily contributed by netizens, and the copyright belongs to the original author. This site does not assume corresponding legal responsibility. 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