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Running via the CLI

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- As well as calling an applications Controllers via the URL in a browser they can also be loaded via the command-line interface (CLI). -

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What is the CLI?
Why use this method?
How does it work?

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What is the CLI?

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The command-line interface is a text-based method of interacting with computers. For more information, check the Wikipedia article.

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Why run via the command-line?

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- There are many reasons for running CodeIgniter from the command-line, but they are not always obvious.

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Run your cron-jobs without needing to use wget or curl
Make your cron-jobs inaccessible from being loaded in the URL by checking for IS_CLI
Make interactive "tasks" that can do things like set permissions, prune cache folders, run backups, etc.
Integrate with other applications in other languages. For example, a random C++ script could call one command and run code in your models!

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Let's try it: Hello World!

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Let's create a simple controller so you can see it in action. Using your text editor, create a file called tools.php, and put the following code in it:

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Then save the file to your application/controllers/ folder.

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Now normally you would visit the your site using a URL similar to this:

- -example.com/index.php/tools/message/to - -

Instead, we are going to open Terminal in Mac/Lunix or go to Run > "cmd" in Windows and navigate to our CodeIgniter project.

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- $ cd /path/to/project;
- $ php index.php tools message -

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If you did it right, you should see Hello World!.

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- $ php index.php tools message "John Smith" -

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Here we are passing it a argument in the same way that URL parameters work. "John Smith" is passed as a argument and output is: Hello John Smith!.

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That's it!

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That, in a nutshell, is all there is to know about controllers on the command line. Remember that this is just a normal controller, so routing and _remap works fine.

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CodeIgniter User Guide Version 2.0.3

Running via the CLI

What is the CLI?

Why run via the command-line?

Let's try it: Hello World!

That's it!