ajax returns json with added character

Question

I have a Jquery code getting data from ajax call.

$.ajax({
type: 'GET',
url: 'php/upd_dashboard.php',
data: {'name': 'GET_ANUAL_TOTAL_OBJECTIF'},
success: function(data){

    list_total_objectif=data;
},
dataType: 'JSON',
async: false

});

the file upd_dashboard.php, get data from MySql database, and return json result.

echo json_encode($result);

I have no problem when executing this code in localhost, but when I deploy the site I can't get the result of json_encode. by inspecting that in Chrome, I get a character '\ufeff' at the beginning of the json result !!

Chrome inspection result

Is it a problem of encoding? Regards, Hamza.

Answer 1

你可以尝试做ob_clean（）;在发送json输出之前

ob_clean();//clears the output buffer
echo json_encode($result);

但似乎你的$结果只是格格不入。它是字符串还是数组？无论如何，那里没有字符编码问题

Answer 2

根据我在谷歌上发现的，\ ufeff是字节顺序标记。

因此，您可能已将您的PHP源文件包含在带有BOM的UTF-8中。

某些PHP版本不喜欢它并发送BOM输出。

尝试将所有PHP源文件转换为UTF-8而不使用BOM，它应该解决问题。