Komponen Konsol: Perintah CLI

$ composer require symfony/console

<?php
use Symfony\Component\Console\Command\Command;
use Symfony\Component\Console\Input\InputInterface;
use Symfony\Component\Console\Output\OutputInterface;

class GreetCommand extends Command
{
    protected static string $defaultName = "app:greet";

    protected function configure(): void
    {
        $this->setDescription("Greet a user")
             ->addArgument("name", \InputArgument::REQUIRED, "Name to greet")
             ->addOption("uppercase", "u", \InputOption::VALUE_NONE, "Uppercase output");
    }

    protected function execute(InputInterface $input, OutputInterface $output): int
    {
        $name = $input->getArgument("name");
        if ($input->getOption("uppercase")) $name = strtoupper($name);
        $output->writeln("Hello, $name!");
        return Command::SUCCESS;
    }
}

<?php
use Symfony\Component\Console\Application;

$app = new Application("MyApp", "1.0.0");
$app->add(new GreetCommand());
$app->run();

<?php
$this->addArgument("file",  InputArgument::REQUIRED)
     ->addArgument("output", InputArgument::OPTIONAL, "Output file", "out.txt")
     ->addOption("verbose", "v",  InputOption::VALUE_NONE, "Verbose output")
     ->addOption("format",  "f",  InputOption::VALUE_REQUIRED, "Output format", "json");

<?php
$output->writeln("<info>Success!</info>");
$output->writeln("<error>Error occurred</error>");
$output->writeln("<comment>Processing...</comment>");

<?php
use Symfony\Component\Console\Helper\ProgressBar;

$bar = new ProgressBar($output, count($items));
$bar->start();
foreach ($items as $item) {
    processItem($item);
    $bar->advance();
}
$bar->finish();

<?php
use Symfony\Component\Console\Helper\Table;

$table = new Table($output);
$table->setHeaders(["ID", "Name", "Email"])
      ->setRows($userData)
      ->render();

<?php
use Symfony\Component\Console\Question\Question;
$helper   = $this->getHelper("question");
$question = new Question("Enter database password: ");
$question->setHidden(true);
$password = $helper->ask($input, $output, $question);