Sample code for how PSR4 autoload works in PHP
The system is a spceialist system (uses a low level artificial inteligence architecture known as specialist) to play a guessing game. Whenever it miss a guess it tryes to learn a little more.
Uses SQLite* as databases (by and large no need to install anything) and implements a verry simple structure, similar to neural network schema, but a little simpler for it does not have the guessing weight, only the path to the answare. And, although multiple paths are possible for the same answare, it does not provide multiple paths to that same answare (physically the paths are different in the repository). For examnple, it can tell if lasagna is pasta, but it cannot tell how much cheese is in it. Humanly we can say it knows that Lasagna is a Pasta, but it has no idea how much pasta and how much cheese it has in its content in relation to a pasta boiled with salt. Literaly it cannot say how much "Pasta" is "Lasagna" nor teh other way around.;
*) By default it creates a file in "/tmp/php-psr4.sample" to store database (its the database schema repository file). you can change it at the ".env" file
- PHP 7.4+ (will not work with previous versions) with php7.0-sqlite (the docker image bellow have it)
- Composer
- Postman to import "resources/postman/PHP PSR4 Sample.postman_collection.json"
- SQLite
- Unix-Like operational system**
**) The system uses the UUID generator of the unix system therefor it must run on unix like (Linux, FreeBSD MacOS, and others). If you are on windows machine you must use docker container to run the system or change the UUID generator. The generator was tested on Linux systems, if you are on another distribution or other operational system the UUID generator may need a fix, but in essence, all linux distributions and "Unix System V" standards systems must provide some kind of proprietary UUID generator file.
If you don't have PHP 7.4+ you can just do docker run -it --rm --name my-running-script -p 8000:8000 -v /tmp/php- .sample:/tmp/php-ps4.sample -v "$PWD":/usr/src/myapp -w /usr/src/myapp php:7.4-cli php -S 0.0.0.0:8000 at your project folder and you should be
good to go asap.
To get started, take the following steps:
- Local clone repository;
- Import postman collection on your prefered postman client;
- Run composer install;
- Create a ".env" file (could copy from ".env.dev" file)
- Touch the DB_DATABASE reffered file on .env ('default to /tmp/php-ps4.sample)
- Run
php -S localhost:8000(or use docker as sampled tipped in the item "requirements" right above) - Play the game using postman collection!
Its database agnostic, you can chose another one aside SQLite if you will
Read the ~/.env.dev file for more tips on configuration.
- /: The base structure of the game. It creates the database and sets session up;
- /start: Made to start up a new round of questions, it will start by the first question them follow some path to the las known answare;
- /yes: If the reply to the last question is no you get to cosume this method, it will reply you with a new question. It can end the game if the last answare to the last question is the same food you whore thinking;
- /no: Same as yes, but happens when you'de like to say no to the last question. It can end the round asking you to teatch the game what was you thinking of.
- /add: Add new knowledge to the engine. Must be consumed only afther some '/no' consumption;
- /knowledge: shows the knowledge structure. See bellow to check out a sample;
Bellow the base structure when you hit '/' method on the API
{
"data": [
{
"uuid": "51b1e62d-cfcc-45b8-93cc-8f196c3b6f12",
"parent": "",
"item": "Pasta",
"yes": "ff1d2990-145b-405f-8f2f-1088ffd5cf1a",
"no": "29f0d3b3-4324-422b-9caf-887fb69a43cc",
"created_at": "2020-08-22 18:35:30",
"updated_at": "2020-08-22 18:35:30"
},
{
"uuid": "ff1d2990-145b-405f-8f2f-1088ffd5cf1a",
"parent": "51b1e62d-cfcc-45b8-93cc-8f196c3b6f12",
"item": "Lasagna",
"yes": null,
"no": null,
"created_at": "2020-08-22 18:35:30",
"updated_at": "2020-08-22 18:35:30"
},
{
"uuid": "29f0d3b3-4324-422b-9caf-887fb69a43cc",
"parent": "51b1e62d-cfcc-45b8-93cc-8f196c3b6f12",
"item": "Chocolate cake",
"yes": null,
"no": null,
"created_at": "2020-08-22 18:35:30",
"updated_at": "2020-08-22 18:35:30"
}
]
}If you reply you're not thinking in pasta nor it is a chocolate cake for the first round the system will ask you to teatch it. If you add, lest say an apple as a fruit, the structure will turn to look like:
{
"data": [
{
"uuid": "51b1e62d-cfcc-45b8-93cc-8f196c3b6f12",
"parent": "",
"item": "Pasta",
"yes": "ff1d2990-145b-405f-8f2f-1088ffd5cf1a",
"no": "369e7729-bd46-46de-8099-bba91dc2e7d1",
"created_at": "2020-08-22 18:35:30",
"updated_at": "2020-08-22 18:39:26"
},
{
"uuid": "ff1d2990-145b-405f-8f2f-1088ffd5cf1a",
"parent": "51b1e62d-cfcc-45b8-93cc-8f196c3b6f12",
"item": "Lasagna",
"yes": null,
"no": null,
"created_at": "2020-08-22 18:35:30",
"updated_at": "2020-08-22 18:35:30"
},
{
"uuid": "29f0d3b3-4324-422b-9caf-887fb69a43cc",
"parent": "369e7729-bd46-46de-8099-bba91dc2e7d1",
"item": "Chocolate cake",
"yes": null,
"no": null,
"created_at": "2020-08-22 18:35:30",
"updated_at": "2020-08-22 18:39:26"
},
{
"uuid": "369e7729-bd46-46de-8099-bba91dc2e7d1",
"parent": "51b1e62d-cfcc-45b8-93cc-8f196c3b6f12",
"item": "Fruit",
"yes": "b3144d74-58c5-4741-8fc6-c969becf3ea1",
"no": "29f0d3b3-4324-422b-9caf-887fb69a43cc",
"created_at": "2020-08-22 18:39:26",
"updated_at": "2020-08-22 18:39:26"
},
{
"uuid": "b3144d74-58c5-4741-8fc6-c969becf3ea1",
"parent": "369e7729-bd46-46de-8099-bba91dc2e7d1",
"item": "Maça",
"yes": null,
"no": null,
"created_at": "2020-08-22 18:39:26",
"updated_at": "2020-08-22 18:39:26"
}
]
}