PHP design Pattern Simple complaint page instance, PHP design Pattern Example _php Tutorial

PHP design Pattern Simple complaint page instance, PHP design pattern instance

This article introduces the PHP simple complaint page implementation code, share to everyone for reference, the specific content as follows

PHP Code:

<?php/* * Design mode exercise * 1. Database connection Class (singleton mode) * 2. Call the interface to implement the message function (Factory mode) * 3. Achieve hierarchical report processing function (Chain mode) * 4. Send different combinations of report information (bridging mode) * 5. Send report information in different formats (adapter mode) * 6. Automatically append time after the complaint content (adorner mode) * 7. Change the display style according to the member login information (viewer mode) * 8. Based on the length of the Post plus XP (policy mode) */interface DB {function conn ();}  /** * Singleton mode */class Mysqlsingle implements DB {protected static $_instance = NULL;    public static function getinstance () {if (!self::$_instance instanceof self) {self::$_instance = new self;  } return self::$_instance; } Final protected function __construct () {echo ' MySQL Singleton created successfully
';  } Final protected function __clone () {return false; } public Function Conn () {echo ' MySQL connection succeeded
'; }}/** * Factory mode */interface Factory {function createdb ();} Class Mysqlfactory implements Factory {public Function createdb () {echo ' MySQL factory created successfully
';  return Mysqlsingle::getinstance ();  }}/** * Display different styles according to user name * Observer mode */class Observer implements Splsubject {protected $_observers = NULL;  Public $_style = NULL;    Public function __construct ($style) {$this->_style = $style;  $this->_observers = new Splobjectstorage ();  Public function Show () {$this->notify ();  The Public function attach (Splobserver $observer) {$this->_observers->attach ($observer);  The Public function detach (Splobserver $observer) {$this->_observers->detach ($observer);    Public Function Notify () {$this->_observers->rewind ();      while ($this->_observers->valid ()) {$observer = $this->_observers->current ();      $observer->update ($this);    $this->_observers->next (); }}}class Stylea implements Splobserver {public Function update (Splsubject $subject) {echo $subject->_style. ' Module A
'; }}class Styleb implements Splobserver {public Function update (Splsubject $subject) {echo $subject->_style. ' Module B
';  }}/** * Complaints by different means * Bridging mode */class Bridge {protected $_obj = NULL;  Public function __construct ($obj) {$this->_obj = $obj;    Public function msg ($type) {} public Function Show () {$this->msg ();  $this->_obj->msg ();  }}class Bridgeemail extends Bridge {public Function msg () {echo ' email>> ';  }}class Bridgesms extends Bridge {public Function msg () {echo ' sms>> '; }}class Normal {public function msg () {echo ' normal
'; }}class Danger {public Function msg () {echo ' Danger
';  }}/** * Adapter Mode */class Serialize {public $content = NULL;  Public function __construct ($content) {$this->content = serialize ($content); Public function Show () {return ' serialization format:
' .  $this->content;    }}class Jsonadapter extends Serialize {public function __construct ($content) {parent::__construct ($content);    $tmp = unserialize ($this->content);  $this->content = Json_encode ($tmp, TRUE); Public function Show () {return ' JSON format:
' .  $this->content;  }}/** * Adorner mode */class Base {protected $_content = NULL after complaint content)  Public function __construct ($content) {$this->_content = $content;  } public Function GetContent () {return $this->_content;  }}class Decorator {Private $_base = NULL;  Public function __construct (Base $base) {$this->_base = $base; Public function Show () {return $this->_base->getcontent (). ' >> system time: '.  Date (' y-m-d h:i:s ', Time ());  }}/** * Hierarchical report processing function * Responsibility chain mode */class Level1 {protected $_level = 1;  protected $_top = ' Level2 '; Public function Deal ($level) {if ($level <= $this->_level) {echo ' Processing level: 1
';    Return    } $top = new $this->_top;  $top->deal ($level);  }}class Level2 {protected $_level = 2;  protected $_top = ' Level3 '; Public function Deal ($level) {if ($level <= $this->_level) {echo ' Processing level: 2
';    Return    } $top = new $this->_top;  $top->deal ($level);  }}class level3 {protected $_level = 3;  protected $_top = ' Level2 '; Public function Deal ($level) {echo ' Processing level: 3
';  Return }}if (!empty ($_post)) {echo '
PHP design mode
';  Connect Database-factory + Singleton mode $mysqlFactory = new Mysqlfactory ();  $single = $mysqlFactory->createdb ();  $single->conn (); Echo '
';  Observer pattern $username = $_post[' username ');  $ob = new Observer ($username);  $a = new Stylea ();  $ob->attach ($a);  $b = new Styleb ();  $ob->attach ($b);  $ob->show (); Echo '
';  $ob->detach ($b);  $ob->show (); Echo '
';  Bridging mode $typeM = $_post[' Typem '); $typeN = ' Bridge '.  $_post[' Typen '];  $obj = new $typeN (new $typeM);  $obj->show (); Echo '
';  Adapter mode $post = $_post;  $obj = new Serialize ($post);  echo $obj->show (); Echo '
';  $json = new Jsonadapter ($post);  echo $json->show (); Echo '
'; Echo '
';  Adorner mode $content = $_post[' content ');  $decorator = new Decorator (new Base ($content));  echo $decorator->show (); Echo '
'; Responsibility chain mode echo '
';  $level = $_post[' level ');  $deal = new Level1 ();  $deal->deal (Intval ($level)); return;} Require ("0.html");

HTML code:

 
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