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This article mainly explains "how to solve the problem of thinkphp new self () error report". The content of the article is simple and clear, and it is easy to learn and understand. Please follow the editor's train of thought to study and learn "how to solve the problem of thinkphp new self () error report".

Specific problem description:

Public function T2 () {$receiver = new self ();}

Solution:

The error message is already clear: _ _ construct () is missing parameters, look at the code you posted is not passed $app, I have not used TP6, but in a framework like this, the way to get an object is to use a container, which will automatically inject dependencies (that is, automatic instantiation of $app). If you use new, you will not inject dependencies.

So when using a container, you can go like this: $receiver = invoke ('xxx')

When using the new method, you can do this:

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