README

Create simple imports with the Extract, Transform, Load pattern.

Installation

composer require camillebaronnet/php-etl

Usage

This example extract some Github's repositories, apply some transformations

<?php

use Camillebaronnet\ETL\Etl;
use Camillebaronnet\ETL\Extractor\Http;
use Camillebaronnet\ETL\Loader\DebugLoader;
use Camillebaronnet\ETL\Transformer\DateTime;
use Camillebaronnet\ETL\Transformer\Decode;
use Camillebaronnet\ETL\Transformer\Flatten;
use Camillebaronnet\ETL\Transformer\Map;
use Camillebaronnet\ETL\Transformer\Sleep;

$etl = (new Etl)
    ->extract(Http::class, ['url' => 'https://api.github.com/users/camillebaronnet/repos'])
    ->add(Decode::class)
    ->add(Sleep::class, ['seconds' => .2])
    ->add(Flatten::class, ['glue' => '_'])
    ->add(Map::class, [
        'fields' => [
            'id',
            'name',
            'full_name' => 'fullName',
            'owner_login' => 'ownerLogin',
            'owner_url' => 'ownerUrl',
            'url',
            'ssh_url' => 'sshUrl',
            'created_at' => 'createdAt'
        ]
    ])
    ->add(DateTime::class, [
        'fields' => ['createdAt'],
        'from' => 'Y-m-d\TH:i:s\Z',
        'to' => 'd/m/Y',
    ])
;

$etl->process(DebugLoader::class);

The process explained

• EXTRACT : Extract can output one or more items

• TRANFORM : A transform step takes the result of the previous step (extractor or transformer) apply an operation and optionally split the input into several subsets of items (example with Decode).

• LOADER : A loader can by placed at the end of the pipeline or between transformers. Several Loader can be setting up.

Collection

Extractors

Transformers

Loaders

Extendable

You can easily create your own custom Extractors, Transformers, Loader or Strategy by implementing the corresponding interface.

• ExtractInterface
• TransformInterface
• LoaderInterface

Submit yours. Send a pull-request