<?php
require("pagarme-php/Pagarme.php");

$api_key = "SUA_CHAVE_DE_API";
Pagarme::setApiKey($api_key);

$plan_id = "246102";
$plan = PagarMe_Plan::findById($plan_id); //encontra um plano

$subscriptionData = array(
    'plan' => $plan,
    'customer' => $_POST['customer']
);

if(isset($_POST['card_hash'])) {
    $card = new PagarMe_Card(array(
        'card_hash' => $_POST['card_hash']
    ));
    $card->create();
    $subscriptionData['payment_method'] = 'credit_card';
    $subscriptionData['card_id'] = $card->id;
} else {
    $subscriptionData['payment_method'] = 'boleto';
}

$subscription = new PagarMe_Subscription($subscriptionData);

$subscription->create();

echo "Subscription ID: " . $subscription->id;
?>