Symfony $ request-> isXmlHttpRequest()问题 [英] Symfony $request->isXmlHttpRequest() issue

问题描述

我需要检查请求是否为ajax. $request->isXmlHttpRequest()可以正常工作，但是，如果在执行过程中某处存在重定向，则此方法将返回false.在这种情况下，我还能如何检查请求是否为ajax? p.s. ajax由jQuery启动

I need to check if the request is ajax. $request->isXmlHttpRequest() works fine, however if there is a redirect somewhere during the execution, this method will return false. How else can I check if request is ajax in this case? p.s. ajax is initiated by jQuery

推荐答案

如果您没有重定向到项目中的另一个应用程序或另一个外部uri，则在第一个请求上isXmlHttpRequest为true时，只需使用forward即可.

If you arent redirecting to a different application in your project or another external uri just use forward instead if isXmlHttpRequest is true on the first request.

该方法检查X-Requested-with标头的值，并且在某些浏览器实现中，标头(或所有原始标头)已从重定向的请求中删除/覆盖(FF为名称一).

Well that method checks against the value of the X-Requested-with header and in some browser implementations that header (or all original headers) are dropped/overwritten from the redirected request (FF to name one).

作为解决方法，您可以在请求本身中使用变量.您也许可以使用现有的sf_format基础结构，但是由于不确定其内部工作方式，因此不确定是否可以使用.

As a workaround you could use a variable in the request itself. You might be able to use the existing sf_format infrastructure, but im not sure if that would work because im not familiar with how it works internally.

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