显示错误消息的优雅方式是什么? [英] What is the elegant way to show an error message

问题描述

我正在使用PHP和MySQL开发一个站点.我在显示错误消息时遇到了一些麻烦.我在这个站点中使用了很多功能(我已经定义了自己).在函数中很多次，我需要根据特定条件停止函数的执行.退出此功能后，我需要以优雅的方式在网页上显示原因(错误消息).如果我在自己定义的函数中使用die()函数停止执行，则整个过程的其余部分将停止，包括我的网页(HTML).因此，我无法显示错误消息.

当我根据特定条件停止执行函数并从中退出时，如何以优雅的方式显示错误消息.

I am developing a site using PHP and MySQL. I have a little trouble about showing the error messages. I am using so many functions in this site (which I have defined myself). Many times in a function I need to stop the execution of function on the basis of a specific condition. After coming out of this function I need to show the reason (error message) on the web page in an elegant way. If I use the die() function in my own defined function to stop its execution then whole rest of the process stops including my web page (HTML). Thus I am unable to show the error message.

What Should I do to display an error message in an elegant way, when I stop the execution of a function on the basis of a specific condition, and came out of it.

推荐答案

不是很优雅，但是

It''s not very elegant, but

die(''This is a message.'')

将在终止前输出This is a message..
这是处理致命但不太可能的错误的相当普遍的技术.

干杯，
彼得

will output This is a message. before terminating.
This is a fairly common technique for handling fatal but unlikely errors.

Cheers,
Peter

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