public function exportFileWithSimpleFactory()
{
$exportFile = simpleFactory::createExportFile('csv');
$exportFile->export();
}
{
if (is_null(self::$instance)) {
if (ANIMAL == 'dog') {
self::$instance = new dog();
} elseif (ANIMAL == 'cat') {
self::$instance = new cat();
}
}
return self::$instance;
}
}
//--------------------------
//测试
//--------------------------
define("ANIMAL", "dog");
$animal = simpleFactory::getInstance();
$animal->say();
/**
* 工厂方法模式
*/
namespace tk\basicFactory;
interface animal
{
function say();
}
class dog implements animal
{
public function say()
{
echo "汪\n";
