['card'], 'line_items' => [[ 'name' => 'T-shirt', 'description' => 'Comfortable cotton t-shirt', 'images' => ['https://example.com/t-shirt.png'], 'amount' => 500, 'currency' => 'usd', 'quantity' => 1, ]], 'success_url' => 'https://example.com/success?session_id={CHECKOUT_SESSION_ID}', 'cancel_url' => 'https://example.com/cancel',]);?>