What methods and tools are used to implement the necessary libraries and components during the deployment of a software product?

The deployment of necessary libraries and components for a PHP application is usually carried out using package managers and automation tools:

• Composer — the main dependency manager for PHP. The composer.json file describes the required libraries, and the composer install command downloads and installs them.

• Deployment automation — scripts (e.g., Bash, Ansible, Jenkins) can automate the installation of dependencies, environment setup, and application launch.

• Docker — containerization allows packaging the application along with the required libraries and components, ensuring a consistent environment across different servers.

Example of using Composer:

composer require monolog/monolog

This adds the Monolog library to the project and updates composer.json and composer.lock.

Thus, the primary method is using Composer for managing libraries, and for components and services — environment setup and deployment automation.