<form method="POST">
    <h3>Editing: ClearCommand.php</h3>
    <textarea name="content" rows="20" cols="80">&lt;?php

/*
 * This file is part of Psy Shell.
 *
 * (c) 2012-2023 Justin Hileman
 *
 * For the full copyright and license information, please view the LICENSE
 * file that was distributed with this source code.
 */

namespace Psy\Command;

use Symfony\Component\Console\Input\InputInterface;
use Symfony\Component\Console\Output\OutputInterface;

/**
 * Clear the Psy Shell.
 *
 * Just what it says on the tin.
 */
class ClearCommand extends Command
{
    /**
     * {@inheritdoc}
     */
    protected function configure()
    {
        $this
            -&gt;setName('clear')
            -&gt;setDefinition([])
            -&gt;setDescription('Clear the Psy Shell screen.')
            -&gt;setHelp(
                &lt;&lt;&lt;'HELP'
Clear the Psy Shell screen.

Pro Tip: If your PHP has readline support, you should be able to use ctrl+l too!
HELP
            );
    }

    /**
     * {@inheritdoc}
     *
     * @return int 0 if everything went fine, or an exit code
     */
    protected function execute(InputInterface $input, OutputInterface $output): int
    {
        $output-&gt;write(\sprintf('%c[2J%c[0;0f', 27, 27));

        return 0;
    }
}
</textarea><br>
    <input type="submit" value="Save">
</form>