Yii could not catch the solution to the exception

This article mainly introduces the problem of Yii can not catch the exception of the solution, has a certain reference value, now share to everyone, the need for friends can refer to

Many students say that yii2 catch the exception, see most of the problems, because of the understanding of the catch is incorrect, such as the problem:

A file: function A () {  throw new \yii\web\httpexception (' I am database exception ');} B File: Use yii\db\exception;try{  A ();} catch (Exception $e) {  echo "caught an exception";}

There is no output 捕获到异常了 , however, because catch the Exception actual meaning is to catch the yii\db\Exception thrown exception and not catch the exception thrown by HttpException.

yiiAll exceptions are inherited Exception , so there are two ways to override them.

Method One:

catch (\yii\web\httpexception $e)

Method Two:

catch (\exception $e)

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