小编Ahm*_*ber的帖子

<?php
$ar = (object) array('a'=>function(){
   echo 'TEST';
});
$ar->a();
?>

我得到此错误调用未定义的方法

我正在调用API来使用fetch API从服务器下载excel文件,但它没有强制浏览器下载,下面是我的标题响应:

HTTP/1.1 200 OK Content-Length: 168667 
Content-Type: application/vnd.openxmlformats-officedocument.spreadsheetml.sheet 
Server: Microsoft-IIS/8.5 
Content-Disposition: attachment; filename=test.xlsx 
Access-Control-Allow-Origin: http://localhost:9000 
Access-Control-Allow-Credentials: true 
Access-Control-Request-Method: POST,GET,PUT,DELETE,OPTIONS 
Access-Control-Allow-Headers: X-Requested-With,Accept,Content-Type,Origin 
Persistent-Auth: true 
X-Powered-By: ASP.NET 
Date: Wed, 24 May 2017 20:18:04 GMT

在我用来调用API的代码下面:

this.httpClient.fetch(url, {
    method: 'POST',
    body: JSON.stringify(object),
    headers: {
        'Accept': 'application/json',
        'Content-Type': 'application/json'
    }
})