php design patterns book

UML Class DiagramBridging mode for PHP implementation of design Patterns

Notes on three common design patterns in php Class SingetonBasic { Private static $ instance; // Other vars .. Private function _ construct (){ // Do construct .. } Private function _ clone (){} Public static function getInstance (){ If (! (Self: $ instance instanceof self )){ Se

: '. $observable->ip. ' Login failed, password wrong! '. ' ------------------'; if ($status = = Login::login_user_unknown) {//$this->sendmail (' User ip: '. $observable->ip. ' Login failed, no this user! ') ); echo __class__. ' User ip: '. $observable->ip. ' Login failed, no this user! '. ' ------------------'; The}}//instantiates the login information $login = new Login (),//implements the E-mail observer $login->attach (new Emailobserver ());//implements the verificati

the factory identified institutions to buy, not everyone to the factory to buy) 2. The next time you want to use an object, do not need to use the factory, nor need to use a singleton mode, directly on the registrar to get it class Register () { protected Static $objects; function set($alias, $object){ Self::$objects[$alias] =$objects; } function get($alias){ return Self::$objects[$alias]; } function _unset($alias){ unset( Self::$obj

Introduction to PHP design patterns (released electronically)SolutionDownload from the address below:CHM version:[Url = routing... _ pattern_zh.chm [/url]PDF version:[Url = example... _pattern_zh.pdf [/url]Here, we would like to pay tribute to all PHPer involved in this translation project!PHPChina.comD8888D reply contentHaha. I saw this when I got back to my bed

($num 1, $num 2) {return$num 1+$num 2; } } /** * Subtraction class*/ classOperationsub extends Operation { Publicfunction GetValue ($num 1, $num 2) {return$num 1-$num 2; } } /** * Multiplication class*/ classOperationmul extends Operation { Publicfunction GetValue ($num 1, $num 2) {return$num 1*$num 2; } } /** Division class*/ classOperationdiv extends Operation { Publicfunction GetValue ($num 1, $num 2) {Try { if($num 2==0){

The UML class diagram is as follows Factory method mode for implementing design patterns in PHP

;subject =$subject; $this->subject->register ($this); } Public functionUpdate () {$this->mystate =$this->subject->getState (); } Public functiongetsate () {return"Observera Get state:".$this-MyState; }}(4) ObserverB.class.php (specific observer B)phpnamespace Observer;classObserverbextendsobserver{Private $myState= ' init B '; Public function__construct (Subject$subject) { $this->subject =$subject; $this->subject->register ($this); } Public functionUpdate () {$this->mystat

();} classsecretaryimplementsboss{private $observers =array (); publicfunctionattach (observer $observer) { if (!in_array ($observer, $this->observers)) { $this->observers[]= $observer; }}publicfunction Detach (observer $observer) {if ($index =array_ Search ($observer, $this->observers)) {nbsP;unset ($this->observers[$index]); }}publicfunction notifymsg () {foreach ($this->observersas$ observer) { $observer- >change ();}}}classobserver1 Implementsobserver{publicfunctionchange () { echo ' conti

The UML class diagram is as followsThe visitor pattern for PHP implementation Design Patterns

Three categories summarize five PHP design patterns Factory modelSingle element modeObserver ModeCommand chain modeRule mode Class people { Private $ name = ''; Private $ user = null; Private function _ constract ($ name) {/* Here private defines the mode to assist in implementing a single element */ $ This-> name = $

About PHP Design Patterns

PHP Object-oriented basics please click to viewsingle-case modeThe singleton pattern solves the problem of how to create unique object instances throughout the project. (Sample Demo:)1PHP2 //Singleton mode: To ensure that a class has only one instance, can instantiate the object itself, complete all its function operation. 3 ///Most typical case: database operations (singleton mode avoids a large number of new operations.) Each time the new operation

　　//Factory modeInterfaceiuser{ Public functiongetusername ();}classuserfactory{Static Public functionLoad$className) { return New Strtolower($className); } Static Public functionCreate$className) { return New Strtolower($className); }}classUserImplementsiuser{ Public functionGetUserName () {return' Jack '; }}userfactory:: Create (' User '),GetUserName ();//single-case modeclasssingleton{Static Public functiongetinstance () {Static $obj=NULL; if($obj==NULL) {

experience reach a certain level, and it also means to summarize a lot of good design experience, however, it may not be the case that "no teacher can do anything", or you can say that, on the basis of level and experience, it is time for the system to learn the "mode, it is helpful to learn the experts' summary and verify your own shortcomings. This series of design p