To install the Ivory Google Map library, you will need Composer. It's a PHP 5.3+ dependency manager which allows you to declare the dependent libraries your project needs and it will install & autoload them for you.
Composer comes with a simple phar file. To easily access it from anywhere on your system, you can execute:
$ curl -s https://getcomposer.org/installer | php
$ sudo mv composer.phar /usr/local/bin/composer
Require the library in your composer.json
file:
$ composer require egeloen/google-map
If you want to use a service (geocoder, direction, ...), you will need an http client and message factory via Httplug which is an http client abstraction library:
$ composer require php-http/guzzle6-adapter
$ composer require php-http/message
Here, I have chosen to use Guzzle6 but since Httplug supports the most popular http clients, you can install your preferred one instead.
If you want to use a service (geocoder, direction, ...), you will need the Ivory Serializer in order to deserialize the http response:
$ composer require egeloen/serializer
So easy, you just have to require the generated autoload file and you are already ready to play:
<?php
require __DIR__.'/vendor/autoload.php';
use Ivory\GoogleMap;
// ...
The Ivory Google Map library follows the PSR-4 Standard. If you prefer install it manually, it can be autoload by any convenient autoloader.