PHP design pattern example explanation (comprehensive)

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Summary of papers on the PHP design pattern, including the singleton pattern, factory pattern, command pattern, observer pattern, design pattern, adapter pattern of PHP common theory, there are examples of!

1, The singleton design pattern instances of PHP single mode
PHP design patterns in the example. The singleton pattern: an object is only responsible for a specific task.

2, Command mode
PHP design pattern, PHP design pattern instances, some example of the command pattern. Command mode: encapsulate a request as an object, to parameterize clients so that you can use different request; queue or log requests, and support can undo.

3, Factory PHP design pattern instances
The factory pattern on the PHP design pattern example. Factory: the factory class according to the parameter to decide what kind of products to create an instance of the class. Factory: a method used to create other objects of the class. The demand distribution, The incoming parameters, Returns a specific class. Action: object creation package, simplifying the creation of object manipulation, A method invocation factory class to get the class.

4, Observation of PHP design pattern instances of model (2)
Design patterns in PHP, Observation of an example model. The observer pattern: defines a one to many dependency between, When an object changes state, All the objects that depend on it will be informed and updated.

5, Observation of PHP design pattern instances of pattern
This paper introduced, Observation of the PHP design pattern model example. Description: the observer pattern of behavior pattern, The definition of object is a one to many dependency between, So when an object changes state, All the objects that depend on it will be informed and automatic refresh.

6, Observation of the PHP design pattern model example
This paper introduced, An example of the PHP design pattern model, The reference for all learning.

7, Factory pattern to the PHP design pattern example code
In this paper, we give a factory PHP design patterns model., Is suitable for the study and research of PHP design pattern.

8, PHP the singleton design pattern example code
Introduced a PHP the singleton design pattern example for everyone.

9, The factory pattern PHP commonly used design patterns and the singleton pattern
The factory pattern PHP commonly used design patterns and the singleton pattern, First, We see a factory model., The main effect is to reduce the coupling degree of the factory pattern. A friend in need, Can refer to the next.

10, Learning PHP the singleton design pattern
Single mode (mode of duty): an object only responsible for a specific task; singleton classes: 1, the constructor needs to be marked as private (access control: to prevent external code uses the new operator to create an object), The singleton class cannot be instantiated in other classes, Only by its own instantiation;

11, The PHP single mode cases introduction and examples
PHP the singleton design pattern, As a model object, The singleton pattern to ensure that a class has only one instance, But a global point of access to the global offering this example. It will not create a duplicate instances, It returns a reference to the instance of singleton classes internal storage.

12, Learning the adapter pattern PHP
Adapter PHP design patterns, Adapter (alias Wrapper) model: the interface of a class, Convert customer expectations of another kind of interface. The adapter allows the original interface is not compatible with the type of collaboration.

13, PHP three kinds of commonly used design patterns learning notes
This paper will introduce three kinds of commonly used design patterns in PHP Programming: the singleton pattern, factory pattern, observer pattern, A friend in need can refer to the next.

14, PHP the singleton design pattern learning
Implementation of the singleton pattern: how to make the class has only one instance. In Web Application, The extensive use of database connection, If repeated with the database connection inevitably consumes more system resources.

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Posted by Griffith at October 28, 2013 - 12:32 AM