Env

The Env component provides functions for inspecting and modifying the process environment. It covers environment variables, the current working directory, temporary paths, command-line arguments, and PATH manipulation.

Usage

Environment Variables

Read, write, and remove environment variables for the current process:

@example('system/env-variables.php')

Keys containing = or the NUL character are rejected with an InvariantViolationException.

Working Directory

@example('system/env-directories.php')

System Paths

@example('system/env-system-paths.php')

Command-Line Arguments and Executable Path

@example('system/env-args.php')

PATH Manipulation

Split and join PATH-style strings using the platform's path separator (: on Unix, ; on Windows):

@example('system/env-paths.php')

See src/Psl/Env/ for the full API.