use PaymentGateway\PaymentGateway; // Set the default options for the API PaymentGateway::setDefaultOption('merchant_id', '123456'); PaymentGateway::setDefaultOption('api_key', 'abcdefg'); // Make a payment request using the API $gateway = new PaymentGateway(); $gateway->purchase(100);
use Database\DBConnection; // Set the default options for the database connection DBConnection::setDefaultOption('username', 'myusername'); DBConnection::setDefaultOption('password', 'mypassword'); DBConnection::setDefaultOption('dbname', 'mydatabase'); // Connect to the database using the default options $pdo = DBConnection::getConnection();In this example, self setDefaultOption is used to set the default username, password, and database name for the DBConnection library. The getConnection function then uses these default options to create a new PDO object and connect to the database. Based on these examples, it is likely that self setDefaultOption is part of a larger package or library (PaymentGateway or DBConnection, in these cases) that provides a set of functions or methods for performing specific tasks. By setting default options using self setDefaultOption, developers can simplify the process of using these libraries and ensure that all necessary settings are configured properly.