oop

1. OOP PHP 5.3 Faruoqi

4. Contoh class ShopProduct { public $title ; private $producerMainName ; private $producerFirstName ; public $price ; public function __construct( $title, $firstName, $mainName, $price ) { $this->title = $title; $this->producerFirstName = $firstName; $this->producerMainName = $mainName; $this->price = $price; } public function getProducer() { return "{$this->producerFirstName}". " {$this->producerMainName}"; } }

6. Buat ShopProductWriter class ShopProductWriter { public function write(ShopProduct $shopProduct ) { $str = "{$shopProduct->title}: " . $shopProduct->getProducer() . " ({$shopProduct->price})"; print $str; } } $product= new ShopProduct( "My Antonia", "Willa", "Cather", 5.99 ); $writer = new ShopProductWriter(); $writer->write( $product1 );

7. Inheritance class CdProduct extends ShopProduct { public $playLength; public function __construct( $title, $firstName, $mainName, $price, $playLength ) { parent::__construct( $title, $firstName, $mainName, $price ); $this->playLength = $playLength; } public function getPlayLength() { return $this->playLength; } public function getSummaryLine() { $base = "{$this->title} ( {$this->producerMainName}, "; $base .= "{$this->producerFirstName} )"; $base .= ": playing time - {$this->playLength}"; return $base; } }

9. Contoh static class StaticClass{ static public $nama =“oqi”; public $say = “hallo”; static public function sayHello() { return self::$nama; } } Echo StaticClass::sayHello(); Echo StaticClass::$nama;

11. Contoh abstract class abstract class ShopProductWriter { protected $products = array(); public function addProduct( ShopProduct $shopProduct ) { $this->products[]=$shopProduct; } abstract public function write(); } class TextProductWriter extends ShopProductWriter{ public function write() { $str = "PRODUCTS:"; foreach ( $this->products as $shopProduct ) { $str .= $shopProduct->getSummaryLine().""; } print $str; } }

15. Contoh Singleton Sederhana class Single { private static $_ins = null; const CONFIG = 'ok juga'; protected function __construct() { } public static function getInstance(){ if(!isset(self::$_ins)){ self::$_ins = new self(); } return self::$_ins; } public function coba(){ return 'ok'; } }

16. Cara make class singleton echo Single::getInstance()->coba();

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