How can inheritance and interfaces be utilized effectively in PHP installation classes to avoid tight coupling and improve code reusability?

Inheritance can be utilized in PHP installation classes by creating a base class that contains common installation methods and properties, which can be inherited by specific installation classes. Interfaces can be used to define a contract that specific installation classes must adhere to, ensuring consistency in the implementation of installation methods. This approach helps avoid tight coupling between classes and improves code reusability by allowing for easier swapping of different installation classes without affecting the overall functionality. 

<?php

// Base class with common installation methods
class BaseInstallation {
    public function install() {
        // Common installation logic
    }
}

// Interface defining installation methods
interface InstallationInterface {
    public function install();
}

// Specific installation class implementing the interface
class DatabaseInstallation extends BaseInstallation implements InstallationInterface {
    public function install() {
        // Database-specific installation logic
    }
}

// Specific installation class implementing the interface
class FileInstallation extends BaseInstallation implements InstallationInterface {
    public function install() {
        // File-specific installation logic
    }
}

// Usage example
$databaseInstaller = new DatabaseInstallation();
$databaseInstaller->install();

$fileInstaller = new FileInstallation();
$fileInstaller->install();

?>

Keywords

inheritance interfaces PHP installation classes tight coupling code reusability

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