Executing Curl in PHP to do a Stripe subscription - php

Question

The Stripe API allows for Curl calls to be made. For example, the command:
curl https://api.stripe.com//v1/customers/cus_5ucsCmNxF3jsSY/subscriptions -u sk_test_REDACTED:
returns the subscription of customer cus_5ucsCmNxF3jsSY.
How can I use PHP to call this curl command (I am trying to avoid using the PHP Stripe libraries).
I am trying the following:
<?php
// create curl resource
$ch = curl_init();
// set url
curl_setopt($ch, CURLOPT_URL, "https://api.stripe.com//v1/customers/cus_5ucsCmNxF3jsSY/subscriptions -u sk_test_REDACTED:");
//return the transfer as a string
curl_setopt($ch, CURLOPT_RETURNTRANSFER, 1);
// $output contains the output string
$output = curl_exec($ch);
print($output);
// close curl resource to free up system resources
curl_close($ch);
?>
However, it seems that curl does not take the -u parameter of the URL. I get the following error:
{ "error": { "type": "invalid_request_error", "message": "You did not provide an API key. You need to provide your API key in the Authorization header, using Bearer auth (e.g. 'Authorization: Bearer YOUR_SECRET_KEY'). See https://stripe.com/docs/api#authentication for details, or we can help at https://support.stripe.com/." }
How can I pass the -u sk_test_REDACTED: parameter to my curl call?

Answer 1

I ran into the same issue. I wanted to use PHP's CURL functions instead of using the official stripe API because singletons make me nauseous.
I wrote my own very simple Stripe class which utilizes their API via PHP and CURL.
class Stripe {
public $headers;
public $url = 'https://api.stripe.com/v1/';
public $method = null;
public $fields = array();
function __construct () {
$this->headers = array('Authorization: Bearer '.STRIPE_API_KEY); // STRIPE_API_KEY = your stripe api key
}
function call () {
$ch = curl_init();
curl_setopt($ch, CURLOPT_HTTPHEADER, $this->headers);
switch ($this->method){
case "POST":
curl_setopt($ch, CURLOPT_POST, 1);
if ($this->fields)
curl_setopt($ch, CURLOPT_POSTFIELDS, $this->fields);
break;
case "PUT":
curl_setopt($ch, CURLOPT_CUSTOMREQUEST, "PUT");
if ($this->fields)
curl_setopt($ch, CURLOPT_POSTFIELDS, $this->fields);
break;
default:
if ($this->fields)
$this->url = sprintf("%s?%s", $this->url, http_build_query($this->fields));
}
curl_setopt($ch, CURLOPT_URL, $this->url);
curl_setopt($ch, CURLOPT_RETURNTRANSFER, true);
curl_setopt($ch, CURLOPT_SSL_VERIFYPEER, false);
$output = curl_exec($ch);
curl_close($ch);
return json_decode($output, true); // return php array with api response
}
}
// create customer and use email to identify them in stripe
$s = new Stripe();
$s->url .= 'customers';
$s->method = "POST";
$s->fields['email'] = $_POST['email'];
$customer = $s->call();
// create customer subscription with credit card and plan
$s = new Stripe();
$s->url .= 'customers/'.$customer['id'].'/subscriptions';
$s->method = "POST";
$s->fields['plan'] = $_POST['plan']; // name of the stripe plan i.e. my_stripe_plan
// credit card details
$s->fields['source'] = array(
'object' => 'card',
'exp_month' => $_POST['card_exp_month'],
'exp_year' => $_POST['card_exp_year'],
'number' => $_POST['card_number'],
'cvc' => $_POST['card_cvc']
);
$subscription = $s->call();
You can dump $customer and $subscription via print_r to see the response arrays if you want to manipulate the data further.