What are the advantages of using interfaces in PHP classes?

Using interfaces in PHP classes allows for better code organization and structure by defining a contract that classes must adhere to. This promotes code reusability and makes it easier to swap out implementations without affecting other parts of the codebase. Additionally, interfaces can help improve code readability and maintainability by clearly outlining the expected behavior of classes that implement them. 

<?php

interface Logger {
    public function log($message);
}

class FileLogger implements Logger {
    public function log($message) {
        // Implementation of logging to a file
    }
}

class DatabaseLogger implements Logger {
    public function log($message) {
        // Implementation of logging to a database
    }
}

Keywords

Interfaces PHP classes object-oriented programming polymorphism code reusability

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