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Yii3 - How to start

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Yii3 - How to start

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Tutorials

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[...]
- But you still can use method instead of invokation. For example in file `config/common/routes.php` you can use both:
- `->action(Web\HomePage\Action::class)` // \__invoke() needed
- `->action([Web\HomePage\Action::class, 'run'])`
- Invokable objects are often used for middleware as it fits naturally into dispatcher and pipeline systems. Middleware can then be stateful. But the same aplies to interface-based approaches, you only need to specify the method.

Summary:
 
 
Whenever a method requires a **callable** as the input parameter, you can supply "named function", "anonymous function" or  "invokable object". It is up to you what you pick.
 
 
 
## Hash annotations for class attributes
PHP 8 introduces annotations like this (not only for class attributes):

- `#[Column(type: 'primary')]`
- `#[Column(type: 'string(255)', nullable: true)]`
- `#[Entity(repository: UserRepository::class)]`
[...]
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Written by: rackycz rackycz
Last updated by: rackycz rackycz
Created on: Oct 8, 2025
Last updated: 7 days ago
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