Sams Teach Yourself PHP in 24 Hours, Third Edition

Working with Directories

Now that you can test, read, and write to files, let’s turn our attention to directories. PHP provides many functions to work with directories. You will look at how to create, remove, and read them.

Creating Directories with mkdir()

mkdir() enables you to create a directory. mkdir() also requires a string representing the path to the directory you want to create and an integer that should be an octal number representing the mode you want to set for the directory. You specify an octal (base 8) number with a leading 0. The mode argument has an effect only on Unix systems. The mode should consist of three numbers between 0 and 7, representing permissions for the directory owner, group, and everyone, respectively. This ...