Worked on the rabbitmq/rabbitmq-website repository to address a critical runtime issue in the AMQP RPC client. Focused on PHP development, the work involved replacing an undefined body() method call with the correct getBody() function from the AMQPMessage class, directly resolving a fatal error in rpc_client.php. This targeted bug fix restored stability and reliability to the php-amqplib-based RPC workflow, ensuring consistent end-to-end messaging. The approach emphasized precise API alignment and improved code quality, with all changes documented for future traceability. Utilized skills in AMQP, PHP, and RPC to maintain robust messaging functionality and support ongoing maintenance of the codebase.