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# Braintree PHP library
The Braintree PHP library provides integration access to the Braintree Gateway.
## Please Note
> **The Payment Card Industry (PCI) Council has [mandated](https://blog.pcisecuritystandards.org/migrating-from-ssl-and-early-tls) that early versions of TLS be retired from service. All organizations that handle credit card information are required to comply with this standard. As part of this obligation, Braintree is updating its services to require TLS 1.2 for all HTTPS connections. Braintree will also require HTTP/1.1 for all connections. Please see our [technical documentation](https://github.com/paypal/tls-update) for more information.**
## Dependencies
PHP version >= 5.4.0 is required.
The following PHP extensions are required:
* curl
* dom
* hash
* openssl
* xmlwriter
## Quick Start Example
```php
<?php
require_once 'PATH_TO_BRAINTREE/lib/Braintree.php';
// Instantiate a Braintree Gateway either like this:
$gateway = new Braintree_Gateway([
'environment' => 'sandbox',
'merchantId' => 'your_merchant_id',
'publicKey' => 'your_public_key',
'privateKey' => 'your_private_key'
]);
// or like this:
$config = new Braintree_Configuration([
'environment' => 'sandbox',
'merchantId' => 'your_merchant_id',
'publicKey' => 'your_public_key',
'privateKey' => 'your_private_key'
]);
$gateway = new Braintree\Gateway($config)
// Then, create a transaction:
$result = $gateway->transaction()->sale([
'amount' => '1000.00',
'paymentMethodNonce' => 'nonceFromTheClient',
'options' => [ 'submitForSettlement' => true ]
]);
if ($result->success) {
print_r("success!: " . $result->transaction->id);
} else if ($result->transaction) {
print_r("Error processing transaction:");
print_r("\n code: " . $result->transaction->processorResponseCode);
print_r("\n text: " . $result->transaction->processorResponseText);
} else {
print_r("Validation errors: \n");
print_r($result->errors->deepAll());
}
```
Both PSR-0 and PSR-4 namespacing are supported. If you are using composer with `--classmap-authoritative` or
`--optimize-autoloader` enabled, you'll have to reference classes using PSR-4 namespacing:
```php
$gateway = new Braintree\Gateway([
'environment' => 'sandbox',
'merchantId' => 'your_merchant_id',
'publicKey' => 'your_public_key',
'privateKey' => 'your_private_key'
]);
// or
$config = new Braintree\Configuration([
'environment' => 'sandbox',
'merchantId' => 'your_merchant_id',
'publicKey' => 'your_public_key',
'privateKey' => 'your_private_key'
]);
$gateway = new Braintree\Gateway($config)
```
## HHVM Support
The Braintree PHP library will run on HHVM >= 3.4.2.
## Google App Engine Support
When using Google App Engine include the curl extention in your `php.ini` file (see [#190](https://github.com/braintree/braintree_php/issues/190) for more information):
```ini
extension = "curl.so"
```
and turn off accepting gzip responses:
```php
$gateway = new Braintree\Gateway([
'environment' => 'sandbox',
// ...
'acceptGzipEncoding' => false,
]);
```
## Legacy PHP Support
Version [2.40.0](https://github.com/braintree/braintree_php/releases/tag/2.40.0) is compatible with PHP 5.2 and 5.3. You can find it on our releases page.
## Documentation
* [Official documentation](https://developers.braintreepayments.com/php/sdk/server/overview)
## Developing (Docker)
The `Makefile` and `Dockerfile` will build an image containing the dependencies and drop you to a terminal where you can run tests.
```
make
```
## Testing
The unit specs can be run by anyone on any system, but the integration specs are meant to be run against a local development server of our gateway code. These integration specs are not meant for public consumption and will likely fail if run on your system. To run unit tests use rake: `rake test:unit`.
The benefit of the `rake` tasks is that testing covers default `hhvm` and `php` interpreters. However, if you want to run tests manually simply use the following command:
```
phpunit tests/unit/
```
## License
See the LICENSE file.
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