GetResponse APIv2 example

php-example.php

<?php

# Demonstrates how to add new contact to campaign.

# JSON::RPC module is required
# available at http://github.com/GetResponse/DevZone/blob/master/API/lib/jsonRPCClient.php
require_once 'jsonRPCClient.php';

# your API key is available at
# https://app.getresponse.com/my_api_key.html
$api_key = 'ENTER_YOUR_API_KEY_HERE';

# API 2.x URL
$api_url = 'http://api2.getresponse.com';

# initialize JSON-RPC client
$client = new jsonRPCClient($api_url);

# find campaign named 'test'
$campaigns = $client->get_campaigns(
    $api_key,
    array (
        # find by name literally
        'name' => array ( 'EQUALS' => 'test' )
    )
);

# uncomment following line to preview Response
# print_r($campaigns);

# because there can be only one campaign of this name
# first key is the CAMPAIGN_ID required by next method
# (this ID is constant and should be cached for future use)
$CAMPAIGN_ID = array_pop(array_keys($campaigns));

# add contact to the campaign
$result = $client->add_contact(
    $api_key,
    array (
        # identifier of 'test' campaign
        'campaign'  => $CAMPAIGN_ID,

        # basic info
        'name'      => 'Test',
        'email'     => 'test@test.test',

        # custom fields
        'customs' => array(
            array(
                'name'       => 'likes_to_drink',
                'content'    => 'tea'
            ),
            array(
                'name'       => 'likes_to_eat',
                'content'    => 'steak'
            )
        )
    )
);

# uncomment following line to preview Response
# print_r($result);

print("Contact added\n");

# Pawel Pabian http://implix.com

?>

You should change $api_url to https:// otherwise you are sending your api key across the web unencrypted.

How $result can be tested?
What are the possible returned values? Can't find them.