Conversion of php Chinese characters: GBK to Unicode (UTF8)

The conversion of php Chinese characters has always been quite troublesome. This class has four built-in functions: htmlHex, htmlDec, escape, and u2utf8 for your convenience. you can also customize functions to perform your favorite operations on qswhGBK. php download http://www.blueidea.com/user/qswh/qswhGBK.zip from here? ClassqswhGBK {var $

Converting Chinese characters in php has always been a problem.

This class has four built-in functions: "htmlHex", "htmlDec", "escape", "u2utf8"
It is convenient for you to use, and you can also customize functions for your favorite operations.

QswhGBK. php download from here
Http://www.blueidea.com/user/qswh/qswhGBK.zip

Class qswhGBK {
Var $ qswhData;
Function qswhGBK ($ filename = "qswhGBK. php "){
$ This-> qswhData = file ($ filename );
}
Function gb2u ($ gb, $ callback = ""){
/***** (Qiushuiwuhen 2002-8-15 )******/
$ Ret = "";
For ($ I = 0; $ I
If ($ p = ord (substr ($ gb, $ I, 1)> 127 ){

$ Q = ord (substr ($ gb, ++ $ I, 1 ));
$ Q = ($ q-($ q> 128? 65: 64) * 4;
$ Q = substr ($ this-> qswhData [$ p-128], $ q, 4 );
}
Else
$ Q = dechex ($ p );
If (empty ($ callback ))
$ Ret. = $ q;
Else {
$ Arr = array ("htmlHex", "htmlDec", "escape", "u2utf8 ");
If (is_integer ($ callback )){
If ($ callback> count ($ arr) die ("Invalid Function ");
$ Ret. = $ this-> $ arr [$ callback-1] ($ q );
} Else
$ Ret. = $ callback ($ q );
}
}
Return $ ret;
}

Function htmlHex ($ str ){
Return "& # x". $ str .";";
}

Function htmlDec ($ str ){
Return "& #". hexdec ($ str ).";";
}

Function escape ($ str ){
Return hexdec ($ str) <256? Chr (hexdec ($ str): "% u". $ str;
}

Function u2utf8 ($ str ){
/***** (Qiushuiwuhen 2002-8-15 )******/
$ Sp = "! '() *-. 0123456789ABCDEFGHIJKLMNOPQRSTUVWXYZ_abcdefghijklmnopqrstuvwxyz ~ ";
$ Dec = hexdec ($ str );
$ Bin = decbin ($ dec );
$ Len = strlen ($ bin );
$ Arr = array ("c0", "e0", "f0 ");
If ($ dec> 0x7f ){
$ Ret = "";
For ($ I = $ len, $ j =-1; $ I >=0; $ I-= 6, $ j ++ ){
If ($ I> 6)
$ Ret = "%". dechex (0x80 + bindec (substr ($ bin, $ I-6, 6). $ ret;
Else
$ Ret = "%". dechex (hexdec ($ arr [$ j]) + bindec (substr ($ bin, 0, 6-$ I). $ ret;
}
} Else {
If (strpos ($ sp, chr ($ dec )))
$ Ret = chr ($ dec );
Else
$ Ret = "%". strtolower ($ str );
}
Return $ ret;
}
}

Example

$ Words = "Chinese Abc ";
Function ex ($ str) {return "[". $ str. "]";}


$ Qswh = new qswhGBK ("qswhGBK. php"); // if the file name is qswhGBK. php, save the parameter

Echo (" Without parameters :". $ qswh-&gt; gb2u ($ words); &lt;br/&gt; echo ("\ n calls the built-in function htmlHex :". $ qswh-&gt; gb2u ($ words, 1); &lt;br/&gt; echo ("\ n calls the built-in function htmlDec :". $ qswh-&gt; gb2u ($ words, 2); &lt;br/&gt; echo ("\ n call the built-in function escape :". $ qswh-&gt; gb2u ($ words, 3); &lt;br/&gt; echo ("\ n call the built-in function u2utf8 :". $ qswh-&gt; gb2u ($ words, 4); &lt;br/&gt; echo ("\ n call a UDF :". $ qswh-&gt; gb2u ($ words, ex); &lt;br/&gt; &lt;p&gt; &lt;br/&gt; The effect is as follows: &lt;br/&gt; without parameters: 4E2D6587416263 &lt;br/&gt; call the built-in function htmlHex: &amp; # x4E2D; &amp; # x6587; &amp; # x41; &amp; # x62; &amp; # x63; &lt;br/&gt; call the built-in function htmlDec: &amp; #20013; &amp; #25991; &amp; #65; &amp; #98; &amp; #99; &lt;br/&gt; call the built-in function escape: % u4E2D % u6587Abc &lt;br/&gt; call the built-in function u2utf8: % e4 % b8 % ad % e6 % 96% 87Abc &lt;br/&gt; call the UDF: [4E2D] [6587] [41] [62] [63] &lt;br/&gt; &lt;/p&gt;