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# Stripe PHP bindings [](https://travis-ci.org/stripe/stripe-php) [](https://packagist.org/packages/stripe/stripe-php) [](https://packagist.org/packages/stripe/stripe-php) [](https://packagist.org/packages/stripe/stripe-php) [](https://coveralls.io/r/stripe/stripe-php?branch=master) The Stripe PHP library provides convenient access to the Stripe API from applications written in the PHP language. It includes a pre-defined set of classes for API resources that initialize themselves dynamically from API responses which makes it compatible with a wide range of versions of the Stripe API. ## Requirements PHP 5.6.0 and later. ## Composer You can install the bindings via [Composer](http://getcomposer.org/). Run the following command: ```bash composer require stripe/stripe-php ``` To use the bindings, use Composer's [autoload](https://getcomposer.org/doc/01-basic-usage.md#autoloading): ```php require_once('vendor/autoload.php'); ``` ## Manual Installation If you do not wish to use Composer, you can download the [latest release](https://github.com/stripe/stripe-php/releases). Then, to use the bindings, include the `init.php` file. ```php require_once('/path/to/stripe-php/init.php'); ``` ## Dependencies The bindings require the following extensions in order to work properly: - [`curl`](https://secure.php.net/manual/en/book.curl.php), although you can use your own non-cURL client if you prefer - [`json`](https://secure.php.net/manual/en/book.json.php) - [`mbstring`](https://secure.php.net/manual/en/book.mbstring.php) (Multibyte String) If you use Composer, these dependencies should be handled automatically. If you install manually, you'll want to make sure that these extensions are available. ## Getting Started Simple usage looks like: ```php $stripe = new \Stripe\StripeClient('sk_test_BQokikJOvBiI2HlWgH4olfQ2'); $customer = $stripe->customers->create([ 'description' => 'example customer', 'email' => 'email@example.com', 'payment_method' => 'pm_card_visa', ]); echo $customer; ``` ## Documentation See the [PHP API docs](https://stripe.com/docs/api/php#intro). ## Legacy Version Support ### PHP 5.4 & 5.5 If you are using PHP 5.4 or 5.5, you can download v6.21.1 ([zip](https://github.com/stripe/stripe-php/archive/v6.21.1.zip), [tar.gz](https://github.com/stripe/stripe-php/archive/v5.9.2.tar.gz)) from our [releases page](https://github.com/stripe/stripe-php/releases). This version will continue to work with new versions of the Stripe API for all common uses. ### PHP 5.3 If you are using PHP 5.3, you can download v5.9.2 ([zip](https://github.com/stripe/stripe-php/archive/v5.9.2.zip), [tar.gz](https://github.com/stripe/stripe-php/archive/v5.9.2.tar.gz)) from our [releases page](https://github.com/stripe/stripe-php/releases). This version will continue to work with new versions of the Stripe API for all common uses. ## Custom Request Timeouts _NOTE:_ We do not recommend decreasing the timeout for non-read-only calls (e.g. charge creation), since even if you locally timeout, the request on Stripe's side can still complete. If you are decreasing timeouts on these calls, make sure to use [idempotency tokens](https://stripe.com/docs/api/php#idempotent_requests) to avoid executing the same transaction twice as a result of timeout retry logic. To modify request timeouts (connect or total, in seconds) you'll need to tell the API client to use a CurlClient other than its default. You'll set the timeouts in that CurlClient. ```php // set up your tweaked Curl client $curl = new \Stripe\HttpClient\CurlClient(); $curl->setTimeout(10); // default is \Stripe\HttpClient\CurlClient::DEFAULT_TIMEOUT $curl->setConnectTimeout(5); // default is \Stripe\HttpClient\CurlClient::DEFAULT_CONNECT_TIMEOUT echo $curl->getTimeout(); // 10 echo $curl->getConnectTimeout(); // 5 // tell Stripe to use the tweaked client \Stripe\ApiRequestor::setHttpClient($curl); // use the Stripe API client as you normally would ``` ## Custom cURL Options (e.g. proxies) Need to set a proxy for your requests? Pass in the requisite `CURLOPT_*` array to the CurlClient constructor, using the same syntax as `curl_stopt_array()`. This will set the default cURL options for each HTTP request made by the SDK, though many more common options (e.g. timeouts; see above on how to set those) will be overridden by the client even if set here. ```php // set up your tweaked Curl client $curl = new \Stripe\HttpClient\CurlClient([CURLOPT_PROXY => 'proxy.local:80']); // tell Stripe to use the tweaked client \Stripe\ApiRequestor::setHttpClient($curl); ``` Alternately, a callable can be passed to the CurlClient constructor that returns the above array based on request inputs. See `testDefaultOptions()` in `tests/CurlClientTest.php` for an example of this behavior. Note that the callable is called at the beginning of every API request, before the request is sent. ### Configuring a Logger The library does minimal logging, but it can be configured with a [`PSR-3` compatible logger][psr3] so that messages end up there instead of `error_log`: ```php \Stripe\Stripe::setLogger($logger); ``` ### Accessing response data You can access the data from the last API response on any object via `getLastResponse()`. ```php $customer = $stripe->customers->create([ 'description' => 'example customer', ]); echo $customer->getLastResponse()->headers['Request-Id']; ``` ### SSL / TLS compatibility issues Stripe's API now requires that [all connections use TLS 1.2](https://stripe.com/blog/upgrading-tls). Some systems (most notably some older CentOS and RHEL versions) are capable of using TLS 1.2 but will use TLS 1.0 or 1.1 by default. In this case, you'd get an `invalid_request_error` with the following error message: "Stripe no longer supports API requests made with TLS 1.0. Please initiate HTTPS connections with TLS 1.2 or later. You can learn more about this at [https://stripe.com/blog/upgrading-tls](https://stripe.com/blog/upgrading-tls).". The recommended course of action is to [upgrade your cURL and OpenSSL packages](https://support.stripe.com/questions/how-do-i-upgrade-my-stripe-integration-from-tls-1-0-to-tls-1-2#php) so that TLS 1.2 is used by default, but if that is not possible, you might be able to solve the issue by setting the `CURLOPT_SSLVERSION` option to either `CURL_SSLVERSION_TLSv1` or `CURL_SSLVERSION_TLSv1_2`: ```php $curl = new \Stripe\HttpClient\CurlClient([CURLOPT_SSLVERSION => CURL_SSLVERSION_TLSv1]); \Stripe\ApiRequestor::setHttpClient($curl); ``` ### Per-request Configuration For apps that need to use multiple keys during the lifetime of a process, like one that uses [Stripe Connect][connect], it's also possible to set a per-request key and/or account: ```php $customers = $stripe->customers->all([],[ 'api_key' => 'sk_test_...', 'stripe_account' => 'acct_...' ]); $stripe->customers->retrieve('cus_123456789', [], [ 'api_key' => 'sk_test_...', 'stripe_account' => 'acct_...' ]); ``` ### Configuring CA Bundles By default, the library will use its own internal bundle of known CA certificates, but it's possible to configure your own: ```php \Stripe\Stripe::setCABundlePath("path/to/ca/bundle"); ``` ### Configuring Automatic Retries The library can be configured to automatically retry requests that fail due to an intermittent network problem: ```php \Stripe\Stripe::setMaxNetworkRetries(2); ``` [Idempotency keys][idempotency-keys] are added to requests to guarantee that retries are safe. ### Request latency telemetry By default, the library sends request latency telemetry to Str