What are the potential pitfalls of using symlinks in PHP, especially on different operating systems like Windows?

Using symlinks in PHP can lead to potential pitfalls, especially when working on different operating systems like Windows. This is because Windows does not fully support symbolic links in the same way Unix-based systems do. To avoid issues, it is recommended to use the `realpath()` function in PHP to resolve the symlink to its actual target path.

// Resolve symlink to actual target path
$actualPath = realpath('/path/to/symlink');