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Update prototype/bookprototype.php #1

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13 changes: 9 additions & 4 deletions prototype/bookprototype.php
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Original file line number Diff line number Diff line change
Expand Up @@ -3,9 +3,9 @@
* abstract class BookPrototype
*/
abstract class BookPrototype {

protected $title;
protected $topic;
//make properties private not protected we have set and get method and any one can use it
private $title;
private $topic;

// this magic method is invoked each time a clone is called on the object variable
abstract function __clone();
Expand All @@ -21,5 +21,10 @@ function setTitle($titleIn) {
function getTopic() {
return $this->topic;
}

function setTopic($topicIn) {
$this->topic = $topicIn;
}

}
?>
?>