Implementing Multiple Interface

In PHP, a class can implement multiple interfaces by separating them with commas in the implements clause. Here's the syntax for implementing multiple interfaces:

interface Interface1 {
    public function method1();
}

interface Interface2 {
    public function method2();
}

class MyClass implements Interface1, Interface2 {
    public function method1() {
        // Implementation for method1
    }

    public function method2() {
        // Implementation for method2
    }

    // ... add more methods as needed
}

In this example, MyClass implements both Interface1 and Interface2. The class must provide implementations for all the methods declared in both interfaces.

If a class implements multiple interfaces that have methods with the same name, it must provide a single implementation for that method. PHP does not support method overloading, so the method signature (including the parameters) must be the same in all interfaces.

Here's another example demonstrating a case where two interfaces have a method with the same name:

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

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

class MyService implements Logger, Messenger {
    public function log($message) {
        // Implementation for log method
    }

    // ... add more methods as needed
}

In this case, MyService implements both Logger and Messenger, and it provides a single implementation for the log method that satisfies the requirements of both interfaces.

Thank you.