由于xmlhttp采用的是unicode编码上传数据，而一般页面采用的是gb2312,这就造成显示页面时产生乱码。而当在获取页面时的xmlhttp返回的是utf-8编码，这就造成了显示产生乱码。
PHP Ajax乱码解决方法之一就是在PHP文件中显示声明为GB2312
header("Content-Type:text/html;charset=GB2312");
而对于发送到服务器的中文进行转码。
如下
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$_POST["content"]=iconv("UTF-8","gb2312",$_POST["content"]);
因而这样可以解决PHP Ajax乱码问题
方法二，是都采用UTF-8编码。这里就不多说了
PHP Ajax乱码解决示例之客户端
<ol class="dp-xml"><li class="alt"><span><span class="tag"><</span><span> !DOCTYPE HTML PUBLIC "-//W3C//<br />DTD HTML 4.01 Transitional//EN"</span><span class="tag">></span><span> </span></span></li><li><span class="tag"><</span><span> </span><span class="tag-name">html</span><span class="tag">></span><span> </span></li><li class="alt"><span class="tag"><</span><span> </span><span class="tag-name">head</span><span class="tag">></span><span> </span></li><li><span class="tag"><</span><span> </span><span class="tag-name">meta</span><span> </span><span class="attribute">http-equiv</span><span>=</span><span class="attribute-value">"Content-Type"<br /></span><span> </span><span class="attribute">content</span><span>=</span><span class="attribute-value">"text/html; charset=gb2312"</span><span class="tag">></span><span> </span></li><li class="alt"><span class="tag"><</span><span> </span><span class="tag-name">title</span><span class="tag">></span><span>ajax post test</span><span class="tag"></</span><span class="tag-name">title</span><span class="tag">></span><span> </span></li><li><span class="tag"><</span><span> /head</span><span class="tag">></span><span> </span></li><li class="alt"><span class="tag"><</span><span> </span><span class="tag-name">body</span><span class="tag">></span><span> </span></li><li><span class="tag"><</span><span> </span><span class="tag-name">div</span><span> </span><span class="attribute">id</span><span>=</span><span class="attribute-value">"msg"</span><span class="tag">></span><span class="tag"><</span><span> /div</span><span class="tag">></span><span> </span></li><li class="alt"><span class="tag"><</span><span> </span><span class="tag-name">script</span><span> </span><span class="attribute">language</span><span>=</span><span class="attribute-value">"javascript"</span><span class="tag">></span><span> </span></li><li><span>/** </span></li><li class="alt"><span>* 初始化一个xmlhttp对象 </span></li><li><span>*/ </span></li><li class="alt"><span>function InitAjax() </span></li><li><span>{ </span></li><li class="alt"><span> var </span><span class="attribute">ajax</span><span>=</span><span class="attribute-value">false</span><span>; </span></li><li><span> try { </span></li><li class="alt"><span></span><span class="attribute">ajax</span><span> = </span><span class="attribute-value">new</span><span> ActiveXObject<br />("Msxml2.XMLHTTP"); </span></li><li><span> } catch (e) { </span></li><li class="alt"><span>try { </span></li><li><span> </span><span class="attribute">ajax</span><span> = </span><span class="attribute-value">new</span><span> ActiveXObject<br />("Microsoft.XMLHTTP"); </span></li><li class="alt"><span>} catch (E) { </span></li><li><span> </span><span class="attribute">ajax</span><span> = </span><span class="attribute-value">false</span><span>; </span></li><li class="alt"><span>} </span></li><li><span> } </span></li><li class="alt"><span> if (!ajax && typeof XMLHttp<br />Request!='undefined') { </span></li><li><span></span><span class="attribute">ajax</span><span> = </span><span class="attribute-value">new</span><span> XMLHttpRequest(); </span></li><li class="alt"><span> } </span></li><li><span> return ajax; </span></li><li class="alt"><span>} </span></li><li><span>//在form 测试页面内有一个表单，一个显示的层 </span></li><li class="alt"><span>function sendData() </span></li><li><span>{ </span></li><li class="alt"><span>var </span><span class="attribute">msg</span><span>=</span><span class="attribute-value">document</span><span>.getElementById("msg"); </span></li><li><span>var </span><span class="attribute">f</span><span>=</span><span class="attribute-value">document</span><span>.form1; </span></li><li class="alt"><span>var </span><span class="attribute">c</span><span>=</span><span class="attribute-value">f</span><span>.content.value; </span></li><li><span>//接收数据的URL </span></li><li class="alt"><span>var </span><span class="attribute">url</span><span>=</span><span class="attribute-value">"dispmsg.php"</span><span>; </span></li><li><span>var </span><span class="attribute">poststr</span><span>=</span><span class="attribute-value">"content="</span><span>+c; </span></li><li class="alt"><span>var </span><span class="attribute">ajax</span><span>=</span><span class="attribute-value">InitAjax</span><span>(); </span></li><li><span>ajax.open("POST",url,true); </span></li><li class="alt"><span>ajax.setRequestHeader("Content-Type",<br />"application/x-www-form-urlencoded"); </span></li><li><span>ajax.send(poststr); </span></li><li class="alt"><span class="attribute">ajax.onreadystatechange</span><span>=</span><span class="attribute-value">function</span><span>(){ </span></li><li><span>if(</span><span class="attribute">ajax.readyState</span><span>==4 && </span><span class="attribute">ajax.status</span><span>==200){ </span></li><li class="alt"><span>alert("I got something"); </span></li><li><span class="attribute">msg.innerHTML</span><span>=</span><span class="attribute-value">ajax</span><span>.responseText; </span></li><li class="alt"><span>} </span></li><li><span>} </span></li><li class="alt"><span>} </span></li><li><span class="tag"><</span><span> /script</span><span class="tag">></span><span> </span></li><li class="alt"><span class="tag"><</span><span> </span><span class="tag-name">form</span><span> </span><span class="attribute">name</span><span>=</span><span class="attribute-value">'form1'</span><span class="tag">></span><span> </span></li><li><span class="tag"><</span><span> </span><span class="tag-name">input</span><span> </span><span class="attribute">type</span><span>=</span><span class="attribute-value">"text"</span><span> </span><span class="attribute">name</span><span>=</span><span class="attribute-value">'content'</span><span> </span><span class="attribute">size</span><span>=</span><span class="attribute-value">10</span><span class="tag">></span><span> </span></li><li class="alt"><span class="tag"><</span><span class="tag-name">input</span><span> </span><span class="attribute">type</span><span>=</span><span class="attribute-value">"button"</span><span> </span><span class="attribute">value</span><span>=</span><span class="attribute-value">"确定"</span><span> <br /></span><span class="attribute">onclick</span><span>=</span><span class="attribute-value">"sendData()"</span><span class="tag">></span><span class="tag"><</span><span> !--我用submit时就出错--</span><span class="tag">></span><span> </span></li><li><span class="tag"><</span><span> /form</span><span class="tag">></span><span> </span></li><li class="alt"><span class="tag"><</span><span> /body</span><span class="tag">></span><span> </span></li><li><span class="tag"><</span><span> /html</span><span class="tag">></span><span> </span></li></ol>PHP Ajax乱码解决示例之服务器端
<ol class="dp-xml"><li class="alt"><span><span class="tag"><</span><span> ?php </span></span></li><li><span>header("Content-Type:text<br />/html;</span><span class="attribute">charset</span><span>=</span><span class="attribute-value">GB2312</span><span>"); </span></li><li class="alt"><span>if($_POST['content']) </span></li><li><span>{ </span></li><li class="alt"><span>$_POST["content"]=iconv("<br />UTF-8","gb2312",$_POST["content"]); </span></li><li><span>print("内容是".$_POST['content']); </span></li><li class="alt"><span>} </span></li><li><span>else </span></li><li class="alt"><span>{ </span></li><li><span>print("没有内容发送"); </span></li><li class="alt"><span>} </span></li><li><span class="tag">?></span><span> </span></li></ol>以上代码示例就是PHP Ajax乱码的相关解决方法，希望对又需要的朋友有所帮助。
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