• 技术文章 >后端开发 >php教程

    php汉字转码 GBK->Unicode(UTF8)编码转换

    2016-07-25 08:53:53原创1219
    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 "&#x".$str.";";
    35. } // 程序员之家 bbs.it-home.org
    37. function htmlDec($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>echo("/n调用内置函数htmlHex:".$qswh->gb2u($words,1));<li>echo("/n调用内置函数htmlDec:".$qswh->gb2u($words,2));<li>echo("/n调用内置函数escape:".$qswh->gb2u($words,3));<li>echo("/n调用内置函数u2utf8:".$qswh->gb2u($words,4));<li>echo("/n调用自定义函数:".$qswh->gb2u($words,ex));</p><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:&#x4E2D;&#x6587;&#x41;&#x62;&#x63; 调用内置函数htmlDec:&#20013;&#25991;&#65;&#98;&#99; 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> <div id="comment_46856" class="cm"> </div> <div id="post_rate_div_46856"></div> <br><br><blockquote><p><span style="color: rgb(255, 0, 0);">php入门到就业线上直播课：</span><a href="//m.sbmmt.com/jump/go.php?url=https%3A%2F%2Fm.sbmmt.com%2Fk.html&location=mob-article-content-php" rel="nofollow" target="_blank">查看学习</a></p></blockquote><div class='bg-white layui-clear' style="margin:15px 0;"><span 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