What are the potential challenges or limitations when transferring C++ classes to PHP?

One potential challenge when transferring C++ classes to PHP is that C++ supports multiple inheritance while PHP only supports single inheritance. To work around this limitation, you can use interfaces in PHP to mimic multiple inheritance by defining common methods that classes can implement.

interface InterfaceA {
    public function methodA();
}

interface InterfaceB {
    public function methodB();
}

class MyClass implements InterfaceA, InterfaceB {
    public function methodA() {
        // implementation
    }

    public function methodB() {
        // implementation
    }
}