The appearance mode of PHP design mode

Appearance mode is a structural pattern

Overview: Provides a consistent interface for a set of interfaces in a subsystem that defines a high-level interface that makes this subsystem easier to use

The appearance mode is to let client clients in a simple way to invoke the more complex system to accomplish one thing;

Objective:

1. Provide a simple interface for a complex subsystem

2. Reduce the coupling between the client and the subsystem

Personal examples:

1 buy hand-picked cakes

namespace Haibao\design\web\view\design;

Use Haibao\design\web\common\design\adapter\translator;

Class Facade extends \haibao\design\web\view\base{

protected function PreRender () {

Header ("content-type:text/html; Charset=utf-8 ");

$facade = new \haibao\design\web\common\design\facade\facade ();

$facade->facade1 ();

Echo '

';

$facade->facade2 ();

}

}

/**

* Boss's hand-grasping cookies

*/

namespace Haibao\design\web\common\design\facade;

Class facade{

Public $object 1;

Public $object 2;

Public $object 3;

Public Function __construct () {

$this->object1 = new subsystem1;//cake

$this->object2 = new SubSystem2; Brush will

$this->object3 = new SubSystem3; Add a bowel.

}

Public Function Facade1 () {

$this->object1->getmessage ();

$this->object2->getmessage ();

}

Public Function Facade2 () {

$this->object2->getmessage ();

$this->object3->getmessage ();

}

}

/**

* Sub-class

*/

namespace Haibao\design\web\common\design\facade;

Class subsystem1{

Public Function GetMessage () {

Echo ' subsystem 1 ';

}

}

/**

* Sub-class

*/

namespace Haibao\design\web\common\design\facade;

Class subsystem2{

Public Function GetMessage () {

Echo ' Subsystem 2 ';

}

}

/**

* Sub-class

*/

namespace Haibao\design\web\common\design\facade;

Class subsystem3{

Public Function GetMessage () {

Echo ' Subsystem 3 ';

}

}

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