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<?Php
class Animal
{
private $weight;
public function getWeight() {
return $this->weight;
}
public function setWeight($W) {
$this->weight = $W;
}
}
class Dog extends Animal
{
}
?>
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<?php
……….
$myDog = new Dog();
$myDog->setWeight(20);
echo "Mydog's weight is " . $myDog->getWeight() . "<br />";
$myDog->Bark();
?>
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<?php
class Animal
{
public $legNum = 0;
public function __construct() {
$this->legNum = 4;
echo "I am an animal <br />";
}
}
class Dog1 extends Animal
{
}
$dog1 = new Dog1();
echo "<br />";
echo "legNum is " . $dog1->legNum;
/*
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*/
?>

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