How to import contacts from gmail using php?

@rollin 

To import contacts from Gmail using PHP, you can use Google's People API. Here is a step-by-step guide on how to do this:

1. Create a Google API project:

• Go to the Google Developers Console at https://console.developers.google.com/.
• Create a new project and enable the People API for that project.
• Create credentials for the API project by going to the "Credentials" section and selecting "Create credentials" -> "OAuth client ID". Choose "Web application" as the application type and add "http://localhost" as an authorized redirect URI.

1. Install the Google API PHP client library:

• You can install the library using Composer by running the following command in your project directory:

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composer require google/apiclient:^2.0

1. Write PHP code to import contacts from Gmail:

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<?php

require_once 'vendor/autoload.php';

$client = new Google_Client();
$client->setAuthConfig('path/to/credentials.json');
$client->addScope('https://www.googleapis.com/auth/contacts.readonly');

if (isset($_GET['code'])) {
    $token = $client->fetchAccessTokenWithAuthCode($_GET['code']);
    $client->setAccessToken($token);
}

if ($client->isAccessTokenExpired()) {
    $client->fetchAccessTokenWithRefreshToken($client->getRefreshToken());
}

$service = new Google_Service_PeopleService($client);

$connections = $service->people_connections->listPeopleConnections('people/me', [
    'personFields' => 'names,emailAddresses',
]);

foreach ($connections->getConnections() as $person) {
    $names = $person->getNames();
    $emailAddresses = $person->getEmailAddresses();
    $name = $names[0]->getDisplayName();
    $email = $emailAddresses[0]->getValue();
    
    echo "Name: $name, Email: $email <br>";
}

1. Run the PHP script:

• Start a PHP development server by running the following command in your project directory:

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php -S localhost:8000

• Open a web browser and go to http://localhost:8000 to run the PHP script. Follow the authorization flow to grant access to your Gmail contacts.

1. Handle the imported contacts:

• Once the script is successfully executed, you should see a list of names and email addresses of your Gmail contacts printed on the webpage.

That's it! You have successfully imported contacts from Gmail using PHP.