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Chapter 11. Practical PHP > File Manipulation
11.3. File Manipulation
There may be times when you don't want to store information in a database and may want to work directly with a file instead. An example is a logfile that tracks when your application can't connect to the database. It would be impossible to keep this information in the database because it's not available at exactly the time you'd need to write to it. PHP provides functions for file manipulation that can perform the following:
Check the existence of a file
Create a file
Append to a file
Rename a file
Delete a file
