phpdotenv
Phpdotenv integrates environment variables using .env files to enhance security and configuration in PHP applications. It keeps sensitive credentials away from code and version control, supporting both immutable and mutable environments with advanced validation. The tool is compatible with various PHP deployment environments, making setup straightforward and providing comprehensive upgrade and usage guidance. With efficient handling of variable nesting, parsing, and requirements, plus enterprise support from Tidelift, phpdotenv ensures secure and maintainable practices.