interface Builder{ public function producePartA(): void;
public function producePartB(): void;
public function producePartC(): void;}
class ConcreteBuilder1 implements Builder{ private $product;
public function __construct() { $this->reset(); }
public function reset(): void { $this->product = new Product1(); }
public function producePartA(): void { $this->product->parts[] = "PartA1"; }
public function producePartB(): void { $this->product->parts[] = "PartB1"; }
public function producePartC(): void { $this->product->parts[] = "PartC1"; }
public function getProduct(): Product1 { $result = $this->product; $this->reset();
return $result; }}
/** * EN: It makes sense to use the Builder pattern only when your products are * quite complex and require extensive configuration. * * Unlike in other creational patterns, different concrete builders can produce * unrelated products. In other words, results of various builders may not * always follow the same interface. * * RU: Имеет смысл использовать паттерн Строитель только тогда, когда ваши * продукты достаточно сложны и требуют обширной конфигурации. * * В отличие от других порождающих паттернов, различные конкретные строители * могут производить несвязанные продукты. Другими словами, результаты различных * строителей могут не всегда следовать одному и тому же интерфейсу. */class Product1{ public $parts = [];
public function listParts(): void { echo "Product parts: " . implode(', ', $this->parts) . "\n\n"; }}
class Director{ private $builder;
public function setBuilder(Builder $builder): void { $this->builder = $builder; }
public function buildMinimalViableProduct(): void { $this->builder->producePartA(); }
public function buildFullFeaturedProduct(): void { $this->builder->producePartA(); $this->builder->producePartB(); $this->builder->producePartC(); }}
function clientCode(Director $director){ $builder = new ConcreteBuilder1(); $director->setBuilder($builder);
echo "Standard basic product:\n"; $director->buildMinimalViableProduct(); $builder->getProduct()->listParts();
echo "Standard full featured product:\n"; $director->buildFullFeaturedProduct(); $builder->getProduct()->listParts();
// 不使用 Director，直接操作 builder 来创建产品 echo "Custom product:\n"; $builder->producePartA(); $builder->producePartC(); $builder->getProduct()->listParts();}
$director = new Director();clientCode($director);
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