Solve the problem of garbled Chinese characters during ajax interaction on pages encoded as gb2312
Ajax only supports the UTF-8 format and does not support the gb2312 encoding format. Therefore, garbled characters often occur when the gb2312 encoding program uses ajax. A solution was just found:
The data transmitted by the server is still gb2312 encoded. The client uses js to convert Chinese characters into UTF-8 encoded characters and displays them on the page.
Search. php tutorial
<? Php
Header ("content-type: text/html; charset = gb2312 ");
Include './search.htm ';
?>Search.htm
<! Doctype html public "-// w3c // dtd xhtml 1.0 transitional // en" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd">
<Html xmlns = "http://www.w3.org/1999/xhtml">
<Head>
<Meta http-equiv = "content-type" content = "text/html; charset = gb2312"/>
<Title> Advanced Search </title>
</Head>
<Body>
<H3> Advanced Search <Form method = "post" action = "">
School type:
<Select name = "schooltype">
<Option value = ""> All </option>
<Option value = "1"> Primary School </option>
<Option value = "2"> Junior High School </option>
</Select>
School name:
<Select name = "sid" id = "sid">
<Option value = ""> Select a School </option>
</Select>
</Form>
<Script type = "text/webpage effects">
Function ajax (settings ){
Var xhr = window. activexobject? New activexobject ("microsoft. xmlhttp"): new xmlhttprequest (), successed = false;
Xhr. open (settings. type, settings. url );
If (settings. type = 'post ')
Xhr. setrequestheader ('content-type', 'application/x-www-form-urlencoded ');
Xhr. send ((! Settings. cache? 'Time = '+ new date (). gettime () +' & ': '') + settings. data );
Settings. loader ();
Settimeout (function (){
If (! Successed ){
Alert ('resquest timeout! ');
Xhr. abort ();
}
}, Settings. timeout );
Xhr. onreadystatechange = function (){
If (xhr. readystate = 4 & xhr. status = 200 ){
Settings. callback (xhr. responsetext. replace (/(^ s *) | (s * $)/g ,""));
}
Successed = true;
}
}
Function a (t ){
Ajax ({
Type: 'post ',
Url: 'Ajax. Php ',
Data: 'schooltype = '+ t,
Timeout: 8000,
Cache: true,
Loader: function (){},
Callback: function (d ){
Var arr = eval (d );
If (typeof (arr) = 'object '){
Var obj, option;
Document. getelementbyid ('Sid '). innerhtml = '';
For (var I = 0; obj = arr; I ++ ){
Option = document. createelement ('option ');
Option. value = obj [0];
Option. innerhtml = txt2utf8 (obj [1], '& #');
Document. getelementbyid ('Sid '). appendchild (option );
}
}
}
})
}
Function txt2utf8 (string, prefix ){
For (var I = 0, utf8 = []; I <string. length; utf8.push (prefix | 'u') + string. charcodeat (I ++ )));
Return utf8.join ('');
}
A (0 );
</Script>
</Body>
</Html>
Ajax. php
<? Php
Header ("content-type: text/html; charset = gb2312 ");
$ Schooltype =! Empty ($ _ post ['schooltype'])? $ _ Post ['schooltype']: 0;
Switch ($ schooltype ){
Case 0:
Echo "[['40', 'huali Bao Elementary School in Taoxi town '], ['41', 'longling Heilongjiang Hope Primary School in Taoxi town'], ['42 ', 'letanxi Town Junior High School'], ['43 ', 'lianyuan Junior High School'] ";
Break;
Case 1:
Echo "[['40', 'huali Bao Elementary School in Taoxi town '], ['41', 'longling Heilongjiang Hope Primary School in Taoxi town']";
Break;
Case 2:
Echo "[['42', 'letanxi Town Junior High School '], ['43', 'lianyi Junior High School in Lotte Creek ']";
Break;
Default:
Break;
}
?>
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