如何访问PHP异常的内部异常

问题描述：

When I make __soapCall (client pointing to a WSDL) and the request is invalid in the server side, the caught exception's message is coming out as general as this:

An error occurred while executing the command definition. See the inner exception for details.

This is an example of one of my try-catch blocks:

try {
    $soapCallResult = $client->myWSDLMethod(array(...));
} catch (Exception $e) {
    echo 'Exception in myWSDLMethod: ',  $e->getMessage(), PHP_EOL;
}

When I var_dump the getTrace(), the array only points to the file and line where I make this call, which is not useful at all... It seems there is no getInnerExceptionMessage() method in the Exception class or something remotely similar to that. So how should I access that inner exception?

答

If you var_dump($e->detail), you can see the entire Exception's detail object and access the inner exception's message through the following path:

$e->detail->ExceptionDetail->InnerException->Message

You may be interested in printing more fields from this object. Here's a dump:

object(stdClass)[?]
  public 'ExceptionDetail' => 
    object(stdClass)[?]
      public 'HelpLink' => null
      public 'InnerException' => 
        object(stdClass)[?]
          public 'HelpLink' => null
          public 'InnerException' => null
          public 'Message' => string 'SERVER ERROR MSG: ...' (length=?)
          public 'StackTrace' => string '   at System.Data.SqlClient.SqlConnection.OnError(SqlException exception, Boolean breakConnection, Action`1 wrapCloseInAction)'... (length=?)
          public 'Type' => string 'System.Data.SqlClient.SqlException' (length=34)
      public 'Message' => string 'An error occurred while executing the command definition. See the inner exception for details.' (length=94)
      ...

Hope it helps.

如何访问PHP异常的内部异常

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