php-Common Design Patterns

Factory mode

/** * Factory method or class to generate the object, rather than in the code directly new *  * Modify the class name, do not need to modify each instantiation statement * Only need to modify the corresponding factory method *  * Class Factory * @package Regina */cla SS factory{    static function CreateDatabase () {        $db = database::getinstance ();        return $db;    }}

Single-Case mode

/** * Singleton mode, save resources, a class can only instantiate an object *  * Make an object of a class only allowed to create one *  * in order to implement Singleton mode, to privatize constructors and clone Magic method * Class Database * @package Regina */class database{        protected static $db;    Private Function __construct () {    }    Private Function __clone () {    }    static function getinstance () {        if (self:: $db) {            return to self:: $db;        }        Self:: $db = new Database ();        Return self:: $db;    }}

Registration mode

/** * Save the new object in a static value for global sharing * global share and Swap objects * Class Register * @package regina */class register{    protected static $arra y;    static function set ($name, $OBJ) {        echo ' Register set run ... ';        Self:: $array [$name] = $OBJ;    }    static function Get ($name) {        echo ' Register get run ... ';        Return self:: $array [$name];    }    function _unset ($name) {        echo ' Register unset run ... ';        Unset (self:: $array [$name]);}    }

Adapter mode

/** * Encapsulates a variety of distinct function interfaces into a unified API * Interface Idatabase * @package regina */interface idatabase{    function Connect ($host, $US Ername, $password, $dbname);    function query ();    function close ();} Class Mysqli implements database{    protected $conn;    Function Connect ($host, $username, $password, $dbname) {        echo ' mysqli connect run ... ';    }    function query () {        echo ' mysqli query run ... ';    }    function Close () {        echo ' mysqli close run ... ';    }} Class Mysql implements database{    function connect ($host, $username, $password, $dbname) {        echo ' MySQL Connect Run ... ';    }    function query () {        echo ' Mysql query run ... ';    }    function Close () {        echo ' Mysql close run ... ';    }}

Policy mode

Encapsulates a specific set of behaviors and algorithms into classes to accommodate the definition of a dictation context.

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php-Common Design Patterns