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Symfony Process with Laravel

Max Hutschenreiter -

Are you using ‘exec’, ‘passthru’, ‘shell_exec’ and ‘system’ PHP functions in your Laravel project?

Taking care of security risks by yourself, as well as expecting differences per operating system which project runs on?

Seems like it’s time to review Symfony Component ‘Process’, which allows you to handle things outside of the project way easier, with high input-output control, and it’s escaping arguments to prevent security issues.

It comes with features like:

  • real-time Process Output,
  • Exception handling
  • Running Processes Asynchronously,
  • Setting Environment Variables for Processes,
  • Streaming to the Standard Input of a Process,
  • Using a Prepared Command Line,
  • wait() function,
  • Process Timeout,
  • Process Signals
Which gives you complete control over the process you are running on the server.

I found it’s great usage while handling the feature where I had to run a specific python file, which required passed arguments:
use Symfony\Component\Process\Process; 
use Symfony\Component\Process\Exception\ProcessFailedException; 
$process = new Process(['python','/path/to/',$arg(optional)]); 
$process->run(); // executes after the command finishes 
if (!$process->isSuccessful()) { 
   throw new ProcessFailedException($process); 
echo $process->getOutput();
Official documentation for this component:

Then, it’s time to go for it:
composer require symfony/process
But before you do, also review Terminal, which is an elegant wrapper around the Symfony Process Component:

Tags: Laravel process · Symfony proccess

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