PHP 5引入了“类型提示”,它使函数和方法能够声明“类型化”参数(对象).对于大多数情况,端口示例应该不是一项大任务,例如从Java到PHP 5.
原文链接：https://www.f2er.com/php/136581.html一个非常简单的例子：
interface MyClient
{
public function doSomething();
public function doSomethingElse();
}
class MyHighLevelObject
{
private $client;
public __construct(MyClient $client)
{
$this->client = $client;
}
public function getStuffDone()
{
if ( any_self_state_check_or_whatever )
$client->doSomething();
else
$client->doSomethingElse();
}
// ...
}
class MyDIP implements MyClient
{
public function doSomething()
{
// ...
}
public function doSomethingElse()
{
// ...
}
}
