PHP CLI: Key Purposes Explained

In PHP, CLI (Command Line Interface) mode refers to the mode where PHP scripts are executed through the command line interface.CLI mode serves the following purposes:

1. Run PHP script: You can directly execute PHP scripts on the command line without needing to run them through a web server.
2. Debugging and testing: The CLI mode can be used for debugging and testing PHP scripts, allowing for output of debugging information and error messages on the command line.
3. Execute scheduled tasks: You can use the CLI mode to execute scheduled tasks, such as database backups and cache clearing.
4. Execute script tasks: CLI mode can be used to execute some script tasks that need to be run in the background, such as data import/export, batch processing files, etc.

In conclusion, the CLI mode provides a convenient environment for running PHP scripts in the command line, making it easier to use and develop in certain scenarios.