php 如何通过ajax获取UTF-8格式的数据

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时间:2020-08-25 20:12:43  来源:igfitidea点击:

How to get UTF-8 format data through ajax

javascriptphpjqueryajaxutf-8

提问by Let me see

Sorry if i am asking a silly question but i really need a solution for it.I am requesting for some data using ajax and the script is

对不起,如果我问了一个愚蠢的问题,但我真的需要一个解决方案。我正在使用 ajax 请求一些数据,脚本是

<!DOCTYPE html>
<html>
<head>
<script>
function loadXMLDoc()
{
var xmlhttp;
if (window.XMLHttpRequest)
  {// code for IE7+, Firefox, Chrome, Opera, Safari
  xmlhttp=new XMLHttpRequest();
  }
else
  {// code for IE6, IE5
  xmlhttp=new ActiveXObject("Microsoft.XMLHTTP");
  }
xmlhttp.onreadystatechange=function()
  {
  if (xmlhttp.readyState==4 && xmlhttp.status==200)
    {
    document.getElementById("myDiv").innerHTML=xmlhttp.responseText;
    }
  }
$url='http://localhost/path/to/the/php/script';
xmlhttp.open("GET",$url,true);
xmlhttp.send();
}
</script>
</head>
<body>

<div id="myDiv"><h2>Let AJAX change this text</h2></div>
<button type="button" onclick="loadXMLDoc()">Change Content</button>

</body>
</html>

and this is my php script

这是我的 php 脚本

<?php 

$sqlurl='/path/to/my/file';

 if(file_exists($sqlurl))
            {
                $sqlitedata= file_get_contents($sqlurl);

       echo $sqlitedata;
            }
            else {

           echo 'the file is not available right now';
             } 
?>

Now the problem is that the data in my file is in the UTF-8 formatbut when i try to get it through ajax then what i get is a series of question marks (??????). How can i request for the data through ajax in the same format in which it originally exists.

现在的问题是我文件中的数据是UTF-8 格式,但是当我尝试通过 ajax 获取它时,我得到的是一系列问号 (??????)。我如何通过 ajax 以原始存在的相同格式请求数据。

回答by mikakun

asuming your file is indeed a xml file, assuming the page making the request is utf8,

假设您的文件确实是一个xml文件,假设发出请求的页面是utf8,

then before you echoanything in your php file :

然后在你echo的 php 文件中的任何内容之前:

<?php header("Content-Type: application/xml; charset=utf-8"); ?>

for extra safety in your xml :

为了您的 xml 更加安全:

<?xml version="1.0" encoding="UTF-8"?>

edit you can do that as well :

编辑你也可以这样做:

header('Content-type: text/xml');

with

<?xml version="1.0" encoding="UTF-8"?>

回答by Rohan Kumar

Try to use utf8-encode()like,

尝试使用utf8-encode() 之类的,

echo utf8_encode($sqlitedata);

If you are using jquerythen use $.ajax()with contentType optionwhich is defaultlike,

如果您正在使用jquery,然后使用$阿贾克斯()contentType optiondefault类似,

function loadXMLDoc()
{
     $.ajax({
         type:"GET",
         url:"http://localhost/path/to/the/php/script",
         contentType: "application/x-www-form-urlencoded;charset=utf-8",
         success: function(data){
             $("#myDiv").html(data);
         }
     });
}

回答by Zahidul Hossein Ripon

between head tag place this

在头标签之间放置这个

<meta http-equiv="Content-Type" content="text/html; charset=UTF-8" />

If you use any query in your php page place this before your query

如果您在 php 页面中使用任何查询,请将其放在查询之前

mysql_query('SET CHARACTER SET utf8');
$result1 = mysql_query("SET NAMES utf8");