php tutorial -> exmplanation of php oops

 oops

car.php

<?php

class car {

public $color;

public $speed;

public $locked;

public $gear_positon =0;

protected $status ;

public $door ;

public function __construct(){

$this->open();

$this->close();

$this->start();

$this->changeGear();

}

public function start(){

$this->color='green';

$this->locked='false';

}

public function stop(){

$this->locked='true';

$this->speed='0';

$this->gear_position='0';

$this->status="parked";

}

public function open(){

$this->door="open";

}

public function changeGear($gear=1,$speed=10){

$this->gear_position=$gear;

$this->status="moving";

$this->speed=$speed;

}

public function close(){

$this->door="closed";

}

// public function __destruct(){

// echo 'svs:'.$this->color;

// echo '</br>';

// echo 'locked:'.$this->locked;

// echo '</br>';

// echo 'gear_position:'. $this->gear_position;

// echo '</br>';

// echo 'status:'.$this->status;

// echo '</br>';

// echo 'speed:'.$this->speed;

// echo '</br>';

// }

}

?>

ist.php

<?php

class car {

public $color;

public $speed;

public $locked;

public $gear_positon =0;

public $status ;

public $door ;

public function start(){

$this->color='green';

$this->locked='false';

}

public function stop(){

$this->locked='true';

$this->speed='0';

$this->gear_position='0';

$this->status="parked";

}

public function open(){

$this->door="open";

}

public function changeGear(){

$this->gear_position='1';

$this->status="moving";

$this->speed='10';

}

public function close(){

$this->door="closed";

}

}

$car = new car();

$car->open();

$car->close();

$car->start();

$car->changeGear();

echo 'color:'.$car->color;

echo '</br>';

echo 'locked:'.$car->locked;

echo '</br>';

echo 'gear_position:'. $car->gear_position;

echo '</br>';

echo 'status:'.$car->status;

echo '</br>';

echo 'speed:'.$car->speed;

echo '</br>';

$car->stop();

echo 'color:'.$car->color;

echo '</br>';

echo 'locked:'.$car->locked;

echo '</br>';

echo 'gear_position:'. $car->gear_position;

echo '</br>';

echo 'status:'.$car->status;

echo '</br>';

echo 'speed:'.$car->speed;

echo '</br>';

?>

second_car.php

<?php

require 'car.php';

class second extends car {

public $second_status;

public function getstatus(){

// Accessing the protected property 'status' from the parent class

$this->second_status = $this->status;

}

}

$second = new second();

$second->changeGear(2,20);

echo 'gear_position: ' . $second->gear_position . '</br>';

echo 'speed: ' . $second->speed . '</br>';

// Accessing the 'status' property through the 'getstatus()' method

$second->getstatus();

echo 'status: ' . $second->second_status . '</br>';

?>

second.php

<?php

require 'car.php';

class second extends car {

public $second_status;

public function getstatus(){

// Accessing the protected property 'status' from the parent class

$this->second_status = $this->status;

}

}

$second = new second();

$second->changeGear(2,20);

echo 'gear_position: ' . $second->gear_position . '</br>';

echo 'speed: ' . $second->speed . '</br>';

// Accessing the 'status' property through the 'getstatus()' method

$second->getstatus();

echo 'status: ' . $second->second_status . '</br>';

?>

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