is getPlayLength(), getNumberOfPages() ever used?

<?php
class ShopProduct {
    public $numPages;
    public $playLength;
    public $title;
    public $producerMainName;
    public $producerFirstName;
    public $price;

    function __construct(   $title, $firstName,
                            $mainName, $price,
                            $numPages=0, $playLength=0 ) {
        $this->title             = $title;
        $this->producerFirstName = $firstName;
        $this->producerMainName  = $mainName;
        $this->price             = $price;
        $this->numPages          = $numPages;
        $this->playLength        = $playLength;
    }

    function getProducer() {
        return "{$this->producerFirstName}".
               " {$this->producerMainName}";
    }

    function getSummaryLine() {
        $base  = "$this->title ( {$this->producerMainName}, ";
        $base .= "{$this->producerFirstName} )";
        return $base;
    }
}

class CdProduct extends ShopProduct {

    function getPlayLength() {
        return $this->playLength;
    }

    function getSummaryLine() {
        $base  = "{$this->title} ( {$this->producerMainName}, ";
        $base .= "{$this->producerFirstName} )";
        $base .= ": playing time - {$this->playLength}";
        return $base;
    }
}

class BookProduct extends ShopProduct {
    function getNumberOfPages() {
        return $this->numPages;
    }

    function getSummaryLine() {
        $base  = "{$this->title} ( {$this->producerMainName}, ";
        $base .= "{$this->producerFirstName} )";
        $base .= ": page count - {$this->numPages}";
        return $base;
    }
}

$product1 = new CdProduct("cd1", "bob", "bobbleson", 4, null, 50 );
print $product1->getSummaryLine();
print "\n";

$product2 = new BookProduct("book1", "harry", "harrelson", 4, 30 );
print $product2->getSummaryLine();
print "\n";

?>

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is getPlayLength(), getNumberOfPages() ever used?
LVL 1
rgb192Asked:
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Marco GasiConnect With a Mentor FreelancerCommented:
In the posted code? No. But you could use from the external script:

$product2 = new BookProduct("book1", "harry", "harrelson", 4, 30 );
print $product2->getNumberOfPages();
print "\n";

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I think that is only an example...
0
 
Cornelia YoderConnect With a Mentor ArtistCommented:
Not in the script you show here.

But this whole script looks like a lot of functions that would be "included" in other scripts and used there.
0
 
Dan CraciunConnect With a Mentor IT ConsultantCommented:
They are, in the declaration of your classes. They're getters.

On your code, they are not used on your 2 objects, but they are available.

HTH,
Dan
0
 
rgb192Author Commented:
Getters to be used in external scripts.  Thanks.
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