What are the implications of reusing a class in different parts of PHP code?

Reusing a class in different parts of PHP code can lead to conflicts if the class is not properly namespaced. To avoid conflicts, it is recommended to namespace the class to ensure it is unique across different parts of the codebase. This can help prevent naming collisions and make the code more maintainable.

```php
// Define the class within a namespace
namespace MyNamespace;

class MyClass {
    // Class implementation
}
```

By namespacing the class, you can ensure that it is unique and prevent conflicts when using it in different parts of your PHP code.