class ShopProduct
{
public $numPages;
public $playLength;
public $title;
public $producerMainName;
public $producerFirstName;
public $price;
public function __ construct(
string $title,
string $firstName,
string $mainName,
float $price,
int $numPages = 0,
int $playLength = 0
) {
$this->title = $title;
$this->producerFirstName = $firstName;
$this->producerMainName = $mainName;
$this->price = $price;
$this->numPages = $numPages;
$this->playLength = $playLength;
}
public function getProducer()
{
return $this->producerFirstName
. $this->producerMainName;
public function getSummaryLine()
{
$base
= ” { $this->title} ( { $this->producerMainName),
$base .= ” { $this->producerFirstName}
return $base;}}
<?php
namespace popp\ch03\batch11;
/* listing 03.30 */
class ShopProduct
{
public $numPages;
public $playLength;
public $title;
public $producerMainName;
public $producerFirstName;
public $price;
/* /listing 03.30 */
public $type="book";
/* listing 03.30 */
public function __construct(
string $title,
string $firstName,
string $mainName,
float $price,
int $numPages = 0,
int $playLength = 0
) {
$this->title = $title;
$this->producerFirstName = $firstName;
$this->producerMainName = $mainName;
$this->price = $price;
$this->numPages = $numPages;
$this->playLength = $playLength;
}
public function getNumberOfPages()
{
return $this->numPages;
}
public function getPlayLength()
{
return $this->playLength;
}
public function getProducer()
{
return $this->producerFirstName . " "
. $this->producerMainName;
}
/* /listing 03.30 */
public function setType(string $type)
{
$this->type=$type;
}
/* listing 03.31 */
public function getSummaryLine()
{
$base = "{$this->title} ( {$this->producerMainName}, ";
$base .= "{$this->producerFirstName} )";
if ($this->type == 'book') {
$base .= ": page count - {$this->numPages}";
} elseif ($this->type == 'cd') {
$base .= ": playing time - {$this->playLength}";
}
return $base;
}
/* /listing 03.31 */
/* listing 03.30 */
}
/* /listing 03.30 */
Мне непонятна работа этого метода getSummaryLine?
public function getSummaryLine()
{
$base
= ” { $this->title} ( { $this->producerMainName),
$base .= ” { $this->producerFirstName}
return $base;}}
