是否有任何函数来检查PHP中是否存在目录或文件夹？

Question

I want to check if there is a directory exist or not before uploading a file.

If the directory does not exist return FALSE.

Does is_dir do the work?

Answer 1

is_dir() well check if the first argument is a directory and is_file() will check if the first argument is a file.

They both return true if the dir/file exists, and false if not.