请求:: is_ajax（）如何在Kohana中运行？

How does Kohana determine if a request is an AJAX one?

Kohana如何确定请求是否是AJAX？

Is there anything different in the referrer string? Do I need to add a GET param, perhaps ?ajax=true ?

引用字符串中有什么不同吗？我是否需要添加GET参数？ajax = true？

3 个解决方案

#1

It checks if the request is made by XMLHttpRequest since most browser send a header in this case with this indication: header HTTP_X_REQUESTED_WITH would be set to XMLHttpRequest.

它检查请求是否由XMLHttpRequest发出，因为大多数浏览器在这种情况下使用此指示发送标头：header HTTP_X_REQUESTED_WITH将设置为XMLHttpRequest。

#2

As of v2.3.4

截至v2.3.4

/**
 * Tests if the current request is an AJAX request by checking the 
 * X-Requested-With HTTP request header that most popular JS frameworks 
 * now set for AJAX calls.
 *
 * @return  boolean
 */

public static function is_ajax()
{
  return (isset($_SERVER['HTTP_X_REQUESTED_WITH']) AND 
          strtolower($_SERVER['HTTP_X_REQUESTED_WITH']) === 'xmlhttprequest');
}

#3

Necro-posting because this came up first my google search.

Necro发布，因为这首先是我的谷歌搜索。

Dunno if Kohana still works this way, but using HTTP_X_REQUESTED_WITH is no longer best practice.

Dunno如果Kohana仍然以这种方式工作，但使用HTTP_X_REQUESTED_WITH不再是最佳实践。

Ajax requests -- all HTTP requests actually -- should send an "Accept" header.

Ajax请求 - 实际上所有HTTP请求 - 应该发送“Accept”标头。

Any server-side process should examine the "Accept" header to determine what content to send in response. One way to do this in PHP is:

任何服务器端进程都应检查“Accept”标头，以确定要响应的内容。在PHP中执行此操作的一种方法是：

  function is_ajax() {
    return $_SERVER['HTTP_ACCEPT'] == 'application/json';
  }

#1