How can PHP namespaces be utilized to avoid conflicts when using classes within classes?

When using classes within classes in PHP, conflicts can arise if two classes have the same name. To avoid this issue, PHP namespaces can be utilized to provide a unique identifier for each class, ensuring that there are no naming conflicts. By assigning each class to a specific namespace, classes can be organized and accessed without the risk of naming collisions.

namespace MyNamespace;

class ClassA {
    // ClassA implementation
}

namespace MyNamespace\SubNamespace;

class ClassA {
    // Another ClassA implementation
}