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With this PHP script you can find size and type (extension) of required file.
File append means to add on to the existing data, then you need to open the file in append mode.
When you view the contents of a directory you can see all the files that exist in that directory because the operating system or application that you are using displays a list of filenames. You can think of these filenames as links that join the files to the directory you are currently viewing. If you unlink a file, you are effectively causing the system to forget about it or delete it! Before you can delete (unlink) a file, you must first be sure that it is not open in your program. Use the fclose function to close down an open file.
We have to use the function fopen to open the file for reading. Here’s the code to read-open the file.
Now that you know how to open and close a file, lets get on to the most useful part of file manipulation, writing! There is really only one main function that is used to write and it’s logically called fwrite.
