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Implementing Object Version Control and Management in PHP Using Simple Factory Pattern

M66 2025-07-17

Implementing Object Version Control and Management in PHP Using Simple Factory Pattern

In the development of large and complex PHP projects, version control and management play a crucial role. Proper use of design patterns allows better management of object creation and usage, thereby improving code maintainability and scalability. This article details how to achieve object version control and management through PHP's object-oriented Simple Factory Pattern.

Overview of Simple Factory Pattern

The Simple Factory Pattern is a creational design pattern where a factory class is responsible for instantiating different objects. This pattern enables creating different versions of objects as needed, simplifying object management.

Defining Interface to Standardize Different Versions

First, define an interface to specify the behavior of different versioned objects:

interface Shape {
    public function draw();
}

Implementing a Factory Class to Create Different Versions

Next, create a factory class that returns the appropriate versioned object based on the version parameter passed in:

class ShapeFactory {
    public static function createShape($version) {
        switch ($version) {
            case '1.0':
                return new ShapeV1();
            case '2.0':
                return new ShapeV2();
            default:
                throw new InvalidArgumentException("Invalid version");
        }
    }
}

This method flexibly creates the corresponding shape object based on the version parameter and throws an exception for invalid versions, ensuring robustness.

Implementation of Specific Versioned Objects

Implement concrete classes that fulfill the interface, each reflecting their own version behavior:

class ShapeV1 implements Shape {
    public function draw() {
        echo "Drawing shape version 1.0";
    }
}

class ShapeV2 implements Shape {
    public function draw() {
        echo "Drawing shape version 2.0";
    }
}

Usage Example of the Factory Pattern

Instantiate objects of different versions through the factory class and invoke their methods:

$shape1 = ShapeFactory::createShape('1.0');
$shape1->draw(); // Output: Drawing shape version 1.0

$shape2 = ShapeFactory::createShape('2.0');
$shape2->draw(); // Output: Drawing shape version 2.0

As shown, the Simple Factory Pattern centralizes the creation of different version objects, abstracting implementation details from the caller.

Conclusion

By using PHP's object-oriented Simple Factory Pattern, it becomes straightforward to implement version control and management for objects. When requirements change, only the factory's version mapping needs to be updated without extensive code modifications, greatly improving system maintainability and scalability.

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