How do I write to the console from a Laravel Controller?

Question

So I have a Laravel controller:

class YeahMyController extends BaseController {
    public function getSomething() {
        Console::info('mymessage'); // <-- what do I put here?
        return 'yeahoutputthistotheresponse';
    }
}

Currently, I'm running the application using artisan (which runs PHP's built-in development web server under the hood):

php artisan serve

I would like to log console messages to the STDOUT pipe for the artisan process.

Solution 1

Aha!

This can be done with the following PHP function:

error_log('Some message here.');

Found the answer here: Print something in PHP built-in web server

Solution 2

The question relates to serving via artisan and so Jrop's answer is ideal in that case. I.e, error_log logging to the apache log.

However, if your serving via a standard web server then simply use the Laravel specific logging functions:

\Log::info('This is some useful information.');

\Log::warning('Something could be going wrong.');

\Log::error('Something is really going wrong.');

Or with current version of Laravel, like this:

info('This is some useful information.');

This logs to Laravel's log file located at /laravel/storage/logs/laravel-<date>.log (laravel 5.0). Monitor the log - linux/osx: tail -f /laravel/storage/logs/laravel-<date>.log

• Laravel 5.0 http://laravel.com/docs/5.0/errors
• Laravel 4.2: http://laravel.com/docs/4.2/errors

Solution 3

I haven't tried this myself, but a quick dig through the library suggests you can do this:

$output = new Symfony\Component\Console\Output\ConsoleOutput();
$output->writeln("<info>my message</info>");

I couldn't find a shortcut for this, so you would probably want to create a facade to avoid duplication.

Solution 4

It's very simple.

You can call it from anywhere in APP.

$out = new \Symfony\Component\Console\Output\ConsoleOutput();
$out->writeln("Hello from Terminal");

Solution 5

In Laravel 6 there is a channel called 'stderr'. See config/logging.php:

'stderr' => [
    'driver' => 'monolog',
    'handler' => StreamHandler::class,
    'formatter' => env('LOG_STDERR_FORMATTER'),
    'with' => [
        'stream' => 'php://stderr',
    ],
],

In your controller:

use Illuminate\Support\Facades\Log;

Log::channel('stderr')->info('Something happened!');

View more solutions

Comments

[wired00]

more ideal is using laravel's built in logging ie, Log::info('This is some useful information.'); just see my answer

[melvinmt]

There's no apache if you're using the artisan web server. And using Log::info will also not output to STDOUT.

[Stuart Wagner]

This also works great for inline debugging of migrations and other artisan commands.

[Tobia]

@wired00 The question specifically asks how to write to the artisan serve console. error_log() does so, while Log::info() does not.

[dotnetCarpenter]

just what I needed. quick 'n dirty - perfect for dev work

[Jonathan Apodaca]

@wired00 You are correct, but as stated in my original question, I was not using Apache, but was using the artisan web server. In that context, error_log is more useful.

[wired00]

@Jrop yep right you are, I amended my answer to clarify that

[Mark Odey]

Despite the fact that I like Jrop answers, I feel this should be the accepted answer too.

[Mark Odey]

Document reference

[Tomeg]

If you want the fancy command IO from Laravel (like styling, asking and table) then check the ConsoleCommand class in my answer here

[Tomeg]

If you want the fancy command IO from Laravel (like styling, asking and table) then check the ConsoleCommand class in my answer here

[Tomeg]

If you want the fancy command IO from Laravel (like styling, asking and table) then check the ConsoleCommand class in my answer here

[Tomeg]

If you want the fancy command IO from Laravel (like styling, asking and table) then check the ConsoleCommand class in my answer here

[Tarek]

But it's only printing strings i want to print an object :(

[Googlian]

Did you check it in terminal

[dude2511]

Thanks for this nice idea. For current Laravel versions (using 7.x) I think it should be public function __construct($argInput = "") though.

[boryn]

I love this solution with CliDumper()! Thank you :)

[Black]

@wired00, I had to use \Log::info('This is some useful information.');

[luisenricke]

Simple and easy, thanks