Using clearstatcache before checking file states/manipulations

[peter279k]

According to clearstatcache function reference, the file state cache is effected on following related file functions:

Affected functions include stat(), lstat(), file_exists(), is_writable(), is_readable(), is_executable(), is_file(), is_dir(), is_link(), filectime(), fileatime(), filemtime(), fileinode(), filegroup(), fileowner(), filesize(), filetype(), and fileperms().

To avoid file stat caching, it should use this function before manipulating any file operation :).

[DivineOmega]

This makes sense, though I've yet to see it cause a problem in real world usage.