PHP异常处理VS C＃ [英] PHP exception Handling vs C#

问题描述

这是一个非常基本的问题（我希望）。大多数的异常处理我做了一直用C＃。在C＃中，在try catch块的错误了由catch代码处理的任何代码。例如：

this is a really basic question (I hope). Most of the exception handling I have done has been with c#. In c# any code that errors out in a try catch block is dealt with by the catch code. For example

try
{
 int divByZero=45/0;
}
catch(Exception ex)
{
 errorCode.text=ex.message();
}

将显示在errorCode.text错误。如果我尝试在不过PHP运行相同的代码：

The error would be displayed in errorCode.text. If I were to try and run the same code in php however:

try{
    $divByZero=45/0;
    }
catch(Exception ex)
{
  echo ex->getMessage();
}

美中不足的代码无法运行。根据我的理解limeted，PHP需要一个罚球。难道这不是打败错误检查的目的吗？这难道不是减少尝试捕捉到，如果再声明？
如果（除零）抛出错误
请告诉我，我没有预见到每一个可能的错误在尝试捕捉与抛出。如果我这样做，反正是有使PHP的错误处理行为更像C＃？

The catch code is not run. Based on my limeted understanding, php needs a throw. Doesn't that defeat the entire purpose of error checking? Doesn't this reduce a try catch to an if then statement? if(dividing by zero)throw error Please tell me that I don't have to anticipate every possible error in a try catch with a throw. If I do, is there anyway to make php's error handling behave more like c#?

推荐答案

您也可以转换所有你的PHP错误与的set_error_han dler（）并的 ErrorException 为例外：

You could also convert all your php errors with set_error_handler() and ErrorException into exceptions:

function exception_error_handler($errno, $errstr, $errfile, $errline )
{
    throw new ErrorException($errstr, 0, $errno, $errfile, $errline);
}
set_error_handler("exception_error_handler");

try {
    $a = 1 / 0;
} catch (ErrorException $e) {
    echo $e->getMessage();
}

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