What are some best practices for securely handling access tokens and API keys in PHP code for Paypal integration?

To securely handle access tokens and API keys in PHP code for Paypal integration, it is recommended to store these sensitive credentials in environment variables or a secure configuration file outside of the web root. This helps prevent accidental exposure of the credentials in case of a code leak or security breach. Additionally, consider using encryption or hashing techniques to further protect the credentials. 

// Store access token and API key in environment variables
$accessToken = getenv('PAYPAL_ACCESS_TOKEN');
$apiKey = getenv('PAYPAL_API_KEY');

// Alternatively, store credentials in a secure configuration file
$config = include 'config.php';
$accessToken = $config['paypal_access_token'];
$apiKey = $config['paypal_api_key'];

// Use encryption or hashing techniques to further protect the credentials
$encryptedAccessToken = encrypt($accessToken);
$hashedApiKey = hash('sha256', $apiKey);

Keywords

Paypal integration access tokens API keys security PHP code

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