How do I check if a directory is writeable in PHP?

Question

Does anyone know how I can check to see if a directory is writeable in PHP?

The function is_writable doesn\'t work for folders.

Edit: It doe

Answer 1

According to the documentation for is_writable, it should just work - but you said "folder", so this could be a Windows issue. The comments suggest a workaround.

(A rushed reading earlier made me think that trailing slashes were important, but that turned out to be specific to this work around).