php-collection

Installation | Functionality | Usage | For developers | License | Related projects

Installation

Requirements

• php 8.0 or higher

Composer

composer require petrenkoanton/php-collection

Functionality

Public methods

Collection

Method	Exception
__construct(Collectable ...$items)	-
add(Collectable $item): void	InvalidItemTypeException | InvalidConstructorDeclarationException
filter(callable $callback): Collection	-
getItems(): array	-
getItem(int $key): Collectable	InvalidKeyException
first(): Collectable	InvalidKeyException
count(): int	-

Exceptions

Main library exception is CollectionException.

Code	Message pattern	Exception	Parent
100	Collection: %s | Expected item type: %s | Given: %s	InvalidItemTypeException	CollectionException
101	Collection: %s | Err: Invalid constructor declaration	InvalidConstructorDeclarationException	CollectionException
200	Collection: %s | Invalid key: %d	InvalidKeyException	CollectionException

Usage

<?php

declare(strict_types=1);

use Collection\Arrayable;
use Collection\Collectable;
use Collection\Collection;

// All collection items must implements `Collection\Collectable` interface
interface EntityInterface extends Collectable
{
}

class Entity implements Arrayable, EntityInterface
{
    public function __construct(private int $id)
    {
    }

    public function getId(): int
    {
        return $this->id;
    }

    public function toArray(): array
    {
        return ['id' => $this->id];
    }
}

class EntityInterfaceCollection extends Collection
{
    public function __construct(EntityInterface ...$items)
    {
        parent::__construct(...$items); // Mandatory call of the parent constructor
    }
}

$firstEntity = new Entity(1);
$secondEntity = new Entity(2);

$collection = new EntityInterfaceCollection($firstEntity);
$collection->add($secondEntity);

$firstEntityId = $collection->first()->getId(); // 1

$count = $collection->count(); // 2

$collectionAsArray = $collection->toArray() // [['id' => 1], ['id' => 2]];

For developers

Requirements

Utils:

• make
• docker-compose

Setup

Initialize

Create ./docker/.env

make init 

Build container with the different php version

php 8.0

make up80

php 8.1

make up81

php 8.2

make up82

php 8.3

make up83

Also you need to run this command before build container with another php version. It will remove network and previously created container.

make down

Other commands

Go inside of the container

make inside

Check php version

make php-v

Check package version

make v

Run tests and linters

Run PHPUnit tests with code coverage

make test-c 

Run Psalm

make psalm

Run PHP_CodeSniffer

make phpcs

Or by all-in-one command from the inside of the container

composer check-all

License

The php-collection library is open-sourced software licensed under the MIT license.

Related projects

• PetrenkoAnton/php-dto