Copy stripe subscriptions after migration

stripe-copy-subscriptions.php

<?php 
/* 
Author: Vikas Singhal (@vikasprogrammer)
Pre-reqs:
Create plans on target account with same plan id. 
Description:
It simply copies over the old subscription in source account to new account mapping the customer and plans. It spits out the new sub_id which you can copy to EDD or whatever billing system you are using. 
It can also cancel plans in the old account. 

/*
<?php 
$old_api_key = '';
$new_api_key = '';

$pretend = true;
$cancel_old_plans = false;

function start($starting_after = '') {

	global $old_api_key, $new_api_key, $pretend, $cancel_old_plans;

	if($starting_after != '') {
		$starting_after = "--starting-after $starting_after";
	}

	$old_subs = json_decode(shell_exec("stripe --api-key $old_api_key subscriptions list --status active $starting_after"));

	$count = count($old_subs->data);
	echo "Found $count subs, hasmore? {$old_subs->has_more}\n";

	foreach ($old_subs->data as $d) {
		
		$trial_end = $d->current_period_end;

		// echo $trial_end;

		echo "Creating new sub for {$d->customer} plan {$d->plan->id} trial_end $trial_end ... ";

		

		if($pretend != true) {
			$sub = shell_exec("stripe --api-key $new_api_key subscriptions create --customer={$d->customer} -d \"items[0][plan]\"={$d->plan->id} -d trial_end=$trial_end");


			error_log($sub);
			$sub = json_decode($sub);

			// var_dump($sub);

			if(property_exists($sub, "error")) {
				echo "Error .. \n";
				var_dump($sub);
				exit;
			} else {
				echo "done! ";
				echo "new sub_id {$sub->id}\n";

			}
		} else {
			echo "\n";
		}

		if($cancel_old_plans) {
			json_decode(shell_exec("stripe --api-key $old_api_key subscriptions cancel {$d->id}"));
			echo "old plan {$d->id} cancelled!\n";
			// exit;
			continue;

		}


		
	}

	if ($old_subs->has_more) {
		if($cancel_old_plans) 
			start(); //as we don't have the last object id anymore
		else
			start($d->id);
	}
}

start();