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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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# Intro
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```

## Disclaimer
 
 
I am just learning Yii3. Its new architecture is not my cup of tea so I am trying my best to reach my goals. (I left world of Java+Spring because of these complex DI configurations and now it's back :-o )
 
 
If you find a better implementation, let me know. I am not an architect, but a real-life developer who solves daily problems in the world of bussines and industry so sometimes I may produce too straightforward or philosophically imperfect solutions.
 
 
## Adding DB into your project

Your project now does not contain any DB. Let's add MariaDB and Adminer (DB browser) into file docker/dev/compose.yml:
[...]
Next we also need an algorithm that will enforce these tokens in each request, will validate and refresh them and will restrict access only to endpoints that the user can use. This is a bigger topic for later. It may be covered by the package https://github.com/yiisoft/auth/ which offers "HTTP bearer authentication".

## UI
 
 
**Debugging in xDebug (xdebug.ini)
 
 
It was a little tricky, but it is simple. Make sure your file `docker/dev/.env` contains following. (tested on MacOs + Docker Desktop):
 
 
```
 
XDEBUG_MODE=develop,debug,coverage
 
XDEBUG_CONFIG="client_host=host.docker.internal start_with_request=yes"
 
```
 
 
Method `xdebug_info()` will still show `xdebug.mode=develop`, but `Step Debugger` will be `enabled`.
 
 
>  You can enhance it by appending `idekey`, but IDE setup then may require you to specify "IDE Key (session id)", the host (localhost:80) and set "path mapping" so that your local project-folder is mapped to "/app". All is done via IDE configuration.
 
>
 
>
 
> `XDEBUG_CONFIG="client_host=host.docker.internal start_with_request=yes idekey=yii3debug`
 
>
 
 
If you want to see correct value `xdebug.mode` in `xdebug_info()`, or generally configure xdebug via `xdebug.ini`, do this:
 
 
docker/dev/xdebug.ini:
 
 
```
 
xdebug.mode=develop,debug,coverage
 
xdebug.client_host=host.docker.internal
 
xdebug.start_with_request=yes
 
xdebug.idekey=yii3debug
 
```
 
 
docker/Dockerfile:
 
 
```
 
COPY docker/dev/xdebug.ini /usr/local/etc/php/conf.d/xdebug.ini
 
```
 
 
dockerignore:
 
 
```
 
!/docker/dev/xdebug.ini
 
```
 
 
## php.ini
 
 
You can do the same as above (chapter about xDebug) with `php.ini` for example to set the timezone:
 
 
```
 
[Date]
 
date.timezone = "UTC"
 
```
 
 
docker/Dockerfile:
 
 
```
 
COPY docker/dev/php.ini /usr/local/etc/php/conf.d/custom.ini
 
```
 
 
## Pjax**

Pjax does not exist any more, but you can use [HTMX](https://htmx.org/docs/#introduction) instead:
[...]
```

**## GridView + CRUD
 
 
Grid view is in package `yiisoft/yii-dataview`. The source code is extremely verbose and complex to me (compared to how primitive function it should provide), so I am just linking my GitHub demo:
 
 
- [Action](https://github.com/rackycz/yii3web/blob/master/src/User/Action/IndexAction.php)
 
- [method findAll()](https://github.com/rackycz/yii3web/blob/master/src/Entity/QueryBuilder/UserQueryBuilderRepository.php)
 
- [QueryDataReader](https://github.com/rackycz/yii3web/blob/master/src/Entity/QueryBuilder/QueryDataReader.php)
 
- [View](https://github.com/rackycz/yii3web/blob/master/src/User/View/index.php)
 
 
 
## JS client - Installable Vuejs3 PWA** If you create a REST API you may be interested in a JS frontend that will communicate with it using Ajax. Below you can peek into my very simple VueJS3 attempt. It is an installable PWA application that works in offline mode (=1 data transfer per day, not on every mouse click) and is meant for situations when customer does not have wifi everywhere. See my [Gitlab](https://gitlab.com/radin.cerny/vuejs3-pwa-demo-plus).
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Version: 3.0
Category: Tutorials
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Written by: rackycz rackycz
Last updated by: rackycz rackycz
Created on: Oct 8, 2025
Last updated: 9 hours ago
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