SystemException base class for all exceptions in the system.

D7 core processes errors using the mechanism of exceptions fully similar to the mechanism of php exceptions. When error occurs - an exception is thrown. When error must be processed - exception must be caught.

Similar tools in the old core:

Method Description Available from version
construct creates new exception object.
  • Exceptions in the Bitrix Framework learning course


// D7
use Bitrix\Main\SystemException;

    // ...
    throw new SystemException("Error");
catch (SystemException $exception)
    echo $exception->getMessage();

Exception hierarchy in D7:

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