Manipulating files is a necessity for all programming languages.
PHP privides you many functions for creating, uploading, and editing files etc.
When manipulating files you must be very careful because you can do a lot of damage.
Common errors include editing the wrong file, filling a hard-drive with garbage data, and accidentally deleting a files.
The file
lessons will begin with how to create, open, and close a file.
After establishing those basics, we will study other important file tasks,
such as: read, write, append, truncate, and uploading files etc.
Note For more detail please see Php Manual at http://www.php.net