如何判断错误是否被@错误控制运算符抑制? [英] How to tell if an error was suppressed by the @ error control operator?

问题描述

我正在使用的第三方库在其代码中使用@错误抑制运算符，这会通过@导致抑制错误，但由于我使用的是自定义错误处理程序(set_error_handler())，因此仍会导致错误输出.

A 3rd party library I'm using uses the @ error suppression operator in its codes which causes suppressed errors via @ still cause an error output because I am using a custom error handler (set_error_handler()).

在此页面中，它说

如果您已使用set_error_handler()设置了一个自定义错误处理函数，则该函数仍将被调用，但此自定义错误处理函数可以(并且应该)调用error_reporting()，该函数在触发该错误的调用之前将返回0.通过@.

If you have set a custom error handler function with set_error_handler() then it will still get called, but this custom error handler can (and should) call error_reporting() which will return 0 when the call that triggered the error was preceded by an @.

但是目前还不清楚我如何才能准确地捕获@之前的错误.

However it is unclear how exactly can I catch the errors that was preceded by an @.

我的问题是如何捕获通过@抑制的错误?

My question is how can I catch errors that was suppressed via @?

推荐答案

如前所述:您的错误处理程序仍将照常调用，但是如果产生了错误，则在错误处理程序内部调用error_reporting()会产生0在@的上下文中.因此，您的错误处理程序应考虑到这一点并采取相应措施.

As it says: your error handler will still be invoked as usual, but calling error_reporting() inside your error handler will yield 0 if the error was produced in the context of an @. So your error handler should take that into account and act accordingly.

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