PHP wrapper for Fixer API

This API wrapper provides a simple way to access fixer.io API in order to easily consume the endpoints with a PHP application.

• Installation
• QuickStart

We are supporting multiple endpoints:

• symbols: Retrieve the list of currencies supported by Fixer
• rates: Return real-time exchange rate data AND historical data
• convert: Return real-time exchange rate data

Installation

You can use composer to include this package to your project:

composer require infiniweb/fixer-api-php

Quick Start

You will need first to instanciate the Fixer class:

$fixer = new \InfiniWeb\FixerAPI\Fixer();

And provide the Fixer API Key:

$fixer->setAccessKey($apiKey);

Make sure to first get your Free or paid API Key here https://fixer.io/product

You are now ready to consume the API!

Symbols

To get the list of Symbols, simply use the following:

$symbols = $fixer->symbols->get();

This will return a list of symbols (ISO 4217 Currency Code) as a simple array:

Array
(
    [AED] => United Arab Emirates Dirham
    [AFN] => Afghan Afghani
    [ALL] => Albanian Lek
    ...

Rates

The are various ways to get rates. It can be real-time data, historical data or series data (from a date to another date)

Real-time rates

You can get the latest rates for all or for specific currencies:

$baseCurrency = "EUR";
$symbols = array("USD", "GBP");
$return = $fixer->rates->get($baseCurrency, $symbols);

This will return the rates of provided currencies compared to the base currency.

Array
(
    [timestamp] => 1528014248
    [base] => EUR
    [rates] => Array
        (
            [USD] => 1.166583
            [GBP] => 0.874168
        )
)

Historical rates

You could also retrive historical rate data by including the date in the request, such as:

$fixer->rates->get($baseCurrency, $symbols, "2018-01-19");

Note that the date needs to be following this format: YYYY-MM-DD

Time-series rates

You can get daily rates from a starting end an end date, using:

$return = $fixer->rates->getDailyRates("2018-05-01", "2018-05-03", $baseCurrency, $symbols);

Array
(
    [base] => EUR
    [rates] => Array
        (
            [2018-05-01] => stdClass Object
                (
                    [USD] => 1.199468
                    [GBP] => 0.881297
                )
            [2018-05-02] => stdClass Object
                (
                    [USD] => 1.195602
                    [GBP] => 0.880967
                )
            ...

Fluctuations

The parameters to retrieve the fluctuations are exactly the same then the time-series rates.

$return = $fixer->rates->getDailyFluctuation("2018-05-01", "2018-05-03", $baseCurrency, $symbols);

You will then get the daily flactuations for each currencies from the start to end date:

Array
(
    [base] => EUR
    [rates] => Array
        (
            [USD] => stdClass Object
                (
                    [start_rate] => 1.199468
                    [end_rate] => 1.199326
                    [change] => -0.0001
                    [change_pct] => -0.0118
                )
            [GBP] => stdClass Object
                (
                    [start_rate] => 0.881297
                    [end_rate] => 0.883748
                    [change] => 0.0025
                    [change_pct] => 0.2781
                )
        )
)

Convert

You can request the conversion from a currency to another. If you provide a date, it will return an historical rate.

$from = "EUR";
$to = "USD";
$amount = "25";
$date = "2018-01-19";
$return = $fixer->convert->get($from, $to, $amount, $date);

You will receive the following array:

Array
(
    [timestamp] => 1516406399
    [rate] => 1.222637
    [result] => 30.565925
)

Additional features

SSL support

All paid subscription plans available on Fixer.io come with 256-bit SSL encryption. You can enable SSL support by providing extra information in the class constructor:

$config = array('ssl' => true);
$fixer = new \InfiniWeb\FixerAPI\Fixer($config);