What potential pitfalls should be considered when mutating objects from one class to another in PHP?

When mutating objects from one class to another in PHP, potential pitfalls to consider include ensuring that the properties and methods of the new class are compatible with the original class to avoid unexpected behavior. It's also important to handle any necessary data transformation or validation during the mutation process to maintain data integrity. Additionally, be mindful of any dependencies or relationships between the classes that may be affected by the mutation.

class ClassA {
    public $propertyA;

    public function methodA() {
        // Method logic
    }
}

class ClassB {
    public $propertyB;

    public function methodB() {
        // Method logic
    }
}

// Mutating an object from ClassA to ClassB
$objectA = new ClassA();
$objectA->propertyA = 'value';

$objectB = new ClassB();
$objectB->propertyB = $objectA->propertyA;

// Ensure data transformation or validation during mutation
// Handle any necessary adjustments to properties or methods