PHP – Create folder and a file in the folder

I worked on a project in that project we have to create folders and then files in that folders. is_dir is a function that checks whether a directory exists or not.  mkdir creates a driectory, file_put_contents is a function that create file and places   contents in that file.

Following the example code.

if(!is_dir("files"))
    mkdir("files");

$file_name = "files/first.html";
$text = "This is my first file";
file_put_contents($file_name, $text);