README

This package gets you quickly up and going with FootballData's API using PHP. This implementation uses the V4 (latest) of the API, as of the time of writing. Read more about the API in the quickstart guide.

• Installation
• Getting Started
• Initialization
  • Collections
  • RateLimit
• About the resources
  • Area Resource
  • Competition Resource
  • Match Resource
  • Team Resource
  • Person Resource
• Laravel
• Credits
• Testing
• About
• License

Installation

You can install the package via composer:

composer require einar-hansen/php-football-data

Getting Started

You should register for an account at https://www.football-data.org.

To use the service you will need create a new instance of EinarHansen\FootballData\FootballDataService::class. The service requires a client that implements Psr\Http\Client\ClientInterface::class, like for example GuzzleHttp\Client::class ('not included in the package').

Initialization

To initialize an API service you don't need to pass in any parameters. But you should provide the API Token that you recieved when registering, to avoid limited access and heavy ratelimiting.

 public function __construct(
    ?string $apiToken = null,
    string $baseUri = 'https://api.football-data.org',
    \Psr\Http\Client\ClientInterface $client = null,
    \Psr\Http\Message\RequestFactoryInterface $requestFactory = null,
    \Psr\Http\Message\UriFactoryInterface $uriFactory = null,
    \Psr\Http\Message\StreamFactoryInterface $streamFactory = null,
    \EinarHansen\Http\Contracts\Collection\CollectionFactory $collectionFactory = null,
    \EinarHansen\Http\Contracts\RateLimit\RateLimiterState $rateLimiterState = null
){}

Because of PHP PSR support and Psr17FactoryDiscovery|Psr18ClientDiscovery we do not need to pass in the implementations of the PSR contracts.

Collections

If you want to use the returned data collections as generators, then you can pass an instance of the EinarHansen\Http\Collection\LazyCollectionFactory::class class, or yor own implementation of the EinarHansen\Http\Contracts\Collection\CollectionFactory::class if you would like.

$service = new FootballDataService(
    collectionFactory: new \EinarHansen\Http\Collection\LazyCollectionFactory()
);

RateLimit

If you want to keep track of you rate limiting, then you should also provide an instance of \EinarHansen\Http\Contracts\RateLimit\RateLimiterState::class. By default the service will remember the attempts and remaining requests in memory, for the duration of the objects lifecycle. Below is an example using the Psr16RateLimitState that comes with the package, configured for the Free Tier.

Take a look at football-data pricing page to find the ratelimits for your Tier.

The ratelimiter will update the state with ratelimiting details from the response headers. If you have used up all the attempts, then your requests will return false.

$psr6Cache = new \Symfony\Component\Cache\Adapter\FilesystemAdapter();
$psr16Cache = new \Symfony\Component\Cache\Psr16Cache($psr6Cache);

// Or in Laravel, using redis
$psr16Cache = \Illuminate\Support\Facades\Cache::store('redis');

$service = new FootballDataService(
    client: new \GuzzleHttp\Client(),
    rateLimiterState: new \EinarHansen\Http\RateLimit\Psr16RateLimitState(
        cacheKey: 'football-data',  // The key you want to use, any string will do
        cache: $psr16Cache,         // An instance of PSR-16 cache
        maxAttempts: 10,            // 10 calls/minute
        decaySeconds: 60,
    )
);

About the resources

Initialize a service like this.

use EinarHansen\FootballData\FootballDataService;

$service = new FootballDataService(apiToken: '::api-token::');

The service consists of 5 resources:

• Area Resource
• Competition Resource
• Match Resource
• Team Resource
• Person Resource

Every resource contains at least the methods all and find. all will return a collection of items, while find will grab an item by its id.

If the item you are trying to find is not found/doesn't exists, then the resource methods will return null. If you are beeing rate limited, then the methods will return false.

Area Resource

Read more about the Area Resource at the offical documentation.

// 👆 Use the $service initialized above
use EinarHansen\FootballData\Data\Area;
use EinarHansen\FootballData\Data\Competition;
use EinarHansen\FootballData\Resources\AreaResource;

$resource = $service->areas(): AreaResource
$collection = $service->areas()->all(): iterable<int, Area>|false;
$area = $service->areas()->find(int $areaId): ?Area|false;

// You can also use the area resource to search for it's competitions
$competitions = $resource->competitions(Area|int $areaId): iterable<int, Competition>|false;

Competition Resource

Read more about the Competition Resource at the offical documentation.

// 👆 Use the $service initialized above
use DateTimeInterface;
use EinarHansen\FootballData\Data\Competition;
use EinarHansen\FootballData\Data\FootballMatch;
use EinarHansen\FootballData\Data\Person;
use EinarHansen\FootballData\Data\PersonGoalScore;
use EinarHansen\FootballData\Data\Standing;
use EinarHansen\FootballData\Data\Team;
use EinarHansen\FootballData\Enums\Stage;
use EinarHansen\FootballData\Enums\Status;
use EinarHansen\FootballData\Resources\CompetitionResource;

$resource = $service->competitions(): CompetitionResource;

$collection = $resource->all(int|array $areaIds = null): iterable<int, Competition>|false;
$competition = $resource->find(int $competitionId): ?Competition|false;

// You can also use the competition resource to search for it's matches
$matches = $resource->competitions()->matches(
    Competition|int $competitionId,
    string|DateTimeInterface $dateFrom = null,
    string|DateTimeInterface $dateTo = null,
    Status $status = null,
    Stage $stage = null,
    int $matchday = null,
    string $group = null,
    int $season = null
): iterable<int, FootballMatch>|false;

// Or the current standings
$standings = $resource->competitions()->standings(
    Competition|int $competitionId,
    int $season = null,
    int $matchday = null,
    string|DateTimeInterface $date = null
): iterable<int, Standing>|false;

// Or the teams
$teams = $resource->competitions()->teams(
    Competition|int $competitionId,
    int $season = null,
): iterable<int, Team>|false;

// Or the topScorers
$topScorers = $resource->competitions()->topScorers(
    Competition|int $competitionId,
    int $season = null,
    int $limit = null,
): iterable<int, PersonGoalScore>|false;

Match Resource

Read more about the Match Resource at the offical documentation.

// 👆 Use the $service initialized above
use DateTimeInterface;
use EinarHansen\FootballData\Data\FootballMatch;
use EinarHansen\FootballData\Enums\Status;
use EinarHansen\FootballData\Resources\MatchResource;

$resource = $service->matches(): MatchResource
$collection = $resource->all(
    array|int $matchIds = null,
    string|DateTimeInterface $dateFrom = null,
    string|DateTimeInterface $dateTo = null,
    Status $status = null,
    array|int $competitionIds = null,
): iterable<int, FootballMatch>|false;
$match = $service->matches()->find(int $matchId): ?FootballMatch|false;

// And you can show the previous matches between the teams
$matches = $service->matches()->matchHead2Head(
    int $matchId,
    string|DateTimeInterface $dateFrom = null,
    string|DateTimeInterface $dateTo = null,
    array|int $competitionIds = null,
    int $limit = null,
): iterable<int, FootballMatch>|false;

Person Resource

Read more about the Person Resource at the offical documentation.

// 👆 Use the $service initialized above
use DateTimeInterface;
use EinarHansen\FootballData\Data\FootballMatch;
use EinarHansen\FootballData\Data\Person;
use EinarHansen\FootballData\Enums\Status;
use EinarHansen\FootballData\Resources\PersonResource;

$resource = $service->persons(): PersonResource
$person = $resource->find(int $personId): ?Person|false

// You can list matches the person was involved in
$matches = $resource->matches(
    Person|int $personId,
    string|DateTimeInterface $dateFrom = null,
    string|DateTimeInterface $dateTo = null,
    Status $status = null,
    array|int $competitionIds = null,
    int $limit = null,
    int $offset = null
): iterable<int, FootballMatch>|false;

Team Resource

Read more about the Team Resource at the offical documentation.

// 👆 Use the $service initialized above
use DateTimeInterface;
use EinarHansen\FootballData\Data\FootballMatch;
use EinarHansen\FootballData\Data\Person;
use EinarHansen\FootballData\Data\Team;
use EinarHansen\FootballData\Enums\Status;
use EinarHansen\FootballData\Resources\TeamResource;
use EinarHansen\FootballData\Pagination\TeamPaginator;

$resource = $service->teams(): TeamResource
$team = $resource->find(int $teamId): ?Team|false;

// This is the preferred method, as it returns a TeamPaginator
$collection = $resource->paginate(
    int $limit = 50,
    int $page = 1
): TeamPaginator<int, Team>|false;

// This method will iterate the results on every page until completed. 
// Set a max page count to avoid an uncontrollable loop.
$collection = $resource->all(int $maxPage = 10): iterable<int, Team>|false;

// You can list matches the person was involved in
$matches = $resource->matches(
    Person|int $personId,
    string|DateTimeInterface $dateFrom = null,
    string|DateTimeInterface $dateTo = null,
    Status $status = null,
    array|int $competitionIds = null,
    int $limit = null,
    int $offset = null
): iterable<int, FootballMatch>|false;

Paginator

The Team Resource has a paginate method that returns an instance of the contract EinarHansen\Http\Contracts\Pagination\Paginator::class that keeps track of the pages and items. The Team Resource uses EinarHansen\FootballData\Pagination\TeamPaginator::class. The paginator allows you to jump between pages with the nextPage and previousPage methods.

// Go to first page
$page1 = $service->teams()->paginate(limit: 50, page: 1);

// Jump between pages, every time you call this method a request is sent and items are loaded.
$page2 = $page1->nextPage();        // Paginator for page 2
$page3 = $page2->nextPage();        // Paginator for page 3
$page2 = $page3->previousPage();    // Paginator for page 2

$page2->items();        // array<int, Team>
$page2->count();        // (int) 50
$page2->isEmpty();      // (bool) false
$page2->isNotEmpty();   // (bool) true
json_encode($page2);    // string containing all items as an array

Laravel

If you are using Laravel, then you might want to add your API Token to your .env file and reference it from you config file. You might also want to register it as a singleton in one of your service providers, for example App\Providers\AppServiceProvider::class.

use EinarHansen\FootballData\FootballDataService;
use EinarHansen\Http\RateLimit\Psr16RateLimitState;
use GuzzleHttp\Client;

...
class AppServiceProvider extends ServiceProvider

public function register()
{
    $this->app->singleton(FootballDataService::class, function ($app) {
        return new FootballDataService(
            apiToken: $app['config']['services']['football-data']['api-token'],
            client: new Client(),
            rateLimiterState: new Psr16RateLimitState(
                cacheKey: 'football-data', 
                cache: $app->make('cache.store'), 
                maxAttempts: 10,            
                decaySeconds: 60,
            )
        );
    });
...
}

Credits

This package uses code from and is greatly inspired by

• Forge SDK package by Mohammed Said
• Working with 3rd party services in Laravel by Steve McDougall

Testing

This package requires PHP8.1. If you don't have this version locally or as default PHP version, then you can use the bin/develop helper script. The script is inspired by Laravel Sail, but is much simpler. To use the script you should have Docker installed. It will pull down PHP8.1 for you and allow you to run the testing commands below.

To use the script

# Enable helper script
chmod +x bin/develop

# Install PHP dependencies
bin/develop composer install

# Run code style formatting
bin/develop format

# Run static analysis
bin/develop analyse

# Run tests
bin/develop test

The testing environment uses guzzlehttp/guzzle. I experienced some issues with the stream interface of the nyholm/psr7 package when loading the fixture-responses into a ResponseInterface in the testing environment, as the body stream that was created from a local file would not play nice with halaxa/json-machine package. The Nyholm package works well in production and with real responses.

About

Einar Hansen is a webdeveloper in Oslo, Norway. You'll find more information about me on my website.

License

The MIT License (MIT).