php ajax交互汉字乱码的问题解决方法_php教程_php教程

ajax只支持utf-8格式，不能支持gb2312编码格式，所以经常遇到gb2312的编码的程序使用ajax就出现乱码，刚找到一种解决方案是：

服务器端传送的数据仍是gb2312编码，客户端用js将汉字转变成utf8编码显示在页面

方法一json

一，服务器端json数据用php的iconv函数转换：iconv('gb2312', 'utf8', "被转换字符串，输出到浏览器");

客户端获取utf8数据，再转成gb2312：

function gb2utf8(data){//gb编码是，ie通过二进制码utf8->gbk转为中文

var glbencode = [];

gb2utf8_data = data;

execscript("gb2utf8_data = midb(gb2utf8_data, 1)", "vbscript");

var t=escape(gb2utf8_data).replace(/%u/g,"").replace(/(.{2})(.{2})/g|>,"%$2%$1").replace(/%([a-z].)%(.{2})/g|>,"@$1$2");

t=t.split("@");

var i=0,j=t.length,k;

while(++i<j)>

k=t.substring(0,4);

if(!glbencode[k]) {

gb2utf8_char = eval("0x"+k);

execscript("gb2utf8_char = chr(gb2utf8_char)", "vbscript");

glbencode[k]=escape(gb2utf8_char).substring(1,6);

}

t=glbencode[k]+t.substring(4);

}

gb2utf8_data = gb2utf8_char = null;

return unescape(t.join("%"));

}

二，header("content-type", "application/x-www-form-urlencoded; charset=gbk"); //输出头标，设置为gbk编码

三，在ajax请求数据前调用上面的方法指定请求使用的字符集:xmlhttp.setrequestheader( "content-type", "application/x-www-form-urlencoded;charset=gbk");

方案二:search.php

<?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">

<head>

</head>

<body>

学校类型:

</select>

学校名称:

<option value="">请选择学校</option>

</select>

</form>

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");

$schooltype = !emptyempty($_post['schooltype']) ? $_post['schooltype'] : 0;

switch($schooltype) {

case 0:

echo "[['40', '太平溪镇花栗包完全小学'],['41', '太平溪镇长岭黑龙江希望小学'],['42', '乐天溪镇初级中学'],['43', '乐天溪镇莲沱初级中学']]";

break;

case 1:

echo "[['40', '太平溪镇花栗包完全小学'],['41', '太平溪镇长岭黑龙江希望小学']]";

break;

case 2:

echo "[['42', '乐天溪镇初级中学'],['43', '乐天溪镇莲沱初级中学']]";

break;

default:

break;

}

(责任编辑：最模板)