php-shell/examples/contexts.php

<?php

require_once __DIR__."/../vendor/autoload.php";

use NoccyLabs\Shell\Shell;
use NoccyLabs\Shell\Context;

$shell = new Shell();
$shell->addListener(Shell::EVT_UPDATE_PROMPT, function ($event) {
    $name = $event->shell->getContextPath();
    $event->shell->setPrompt("shell{$name}> ");
});

class MyContext extends Context
{
    public function __construct()
    {
        // Remember to call the parent constructor if you want to use
        // the doccomment syntax to mark commands, as demonstrated
        // at the end of this class for the bar command.
        parent::__construct();
        $this->addCommand("foo",[$this,"foo"],[
            'help' => "Foo command"
        ]);
    }
    
    public function onEnter()
    {
        echo "Entering context!\n";
    }
    
    public function foo()
    {
        echo "Foo!\n";
    }
    
    /**
     * @command bar
     * @args
     * @help Bar command
     */
    public function bar()
    {
        echo "Bar!\n";
    }
}

$shell->pushContext(new MyContext());


$shell->run();