Eksempler på OOP i PHP for å sammenligne med Cue Visual Basic

Cell.php

<?php
declare(strict_types=1);

namespace App;

/**
 * Cell class
 *
 * Abstract class for inheritance
 */
abstract class Cell
{
    /**
     * Cell ID
     */
    protected const ID = 0;

    /**
     * Set intercom alarm status
     *
     * @param bool $status Status. True for start and false for stop
     * @return void
     */
    public function ContrMaster_funcCell_eIntercomAlarm(bool $status)
    {
        if ($status) {
            $this->intercomAlarmStart();
        } else {
            $this->intercomAlarmStop();
        }
    }

    /**
     * Start intercom alert
     *
     * @return void
     */
    public function intercomAlarmStart()
    {
        echo "intercom alert start for cell " . static::ID . "\n";
    }

    /**
     * Stop intercom alert
     *
     * @return void
     */
    public function intercomAlarmStop()
    {
        echo "intercom alert stop for cell " . static::ID . "\n";
    }
}

CellFour.php

<?php
declare(strict_types=1);

namespace App;

class CellFour extends Cell
{
    /**
     * Cell ID
     */
    protected const ID = 4;
}

CellOne.php

<?php
declare(strict_types=1);

namespace App;

class CellOne extends Cell
{
    /**
     * Cell ID
     */
    protected const ID = 1;
}

CellThree.php

<?php
declare(strict_types=1);

namespace App;

class CellThree extends Cell
{
    /**
     * Cell ID
     */
    protected const ID = 3;

    /**
     * @inheritDoc
     */
    public function intercomAlarmStart()
    {
        parent::intercomAlarmStart();
        echo "Overriden extra message for cell three\n";
    }
}

CellTwo.php

<?php
declare(strict_types=1);

namespace App;

class CellTwo extends Cell
{
    /**
     * Cell ID
     */
    protected const ID = 2;

    /**
     * Change state of water for toilet
     *
     * @param int $state 0: Open, 1: Close, 2: Toggle
     * @return void
     */
    public function SetWaterWC(int $state)
    {
        switch ($state) {
            case 0: echo "open";
            case 1: echo "close";
            case 2: echo "toggle?";
        }
    }
}

index.php

<?php

require 'vendor/autoload.php';

use App\CellFour;
use App\CellOne;
use App\CellThree;
use App\CellTwo;

$cellOne = new CellOne();
$cellOne->intercomAlarmStart();

$cellTwo = new CellTwo();
$cellTwo->intercomAlarmStart();

$cellThree = new CellThree();
$cellThree->intercomAlarmStart();

$cellFour = new CellFour();
$cellFour->intercomAlarmStart();