制作一个简单的留言簿

Question

If you have an html and you sumbit it to a basic PHP file receiver, I wonder how you make them add up. how do you make the submitted forms stack instead of each submission replacing the other? I have no clue where to even start looking for an answer.

wrap print statements and make wrap element an array? do i need file I/O for this so the messages get stored somewhere?

PHP is a very confusing jungle for me at the moment. Note that I haven't gotten to the database part of php in my course yet.

many thanks in advance

Answer 1

Of course you will need file I/O to store messages.
Otherwise how they are supposed to be saved? So, you have to save your messages in a file.

To add new data at the bottom of the file you have to append it instead of rewriting.

if you're using file_put_contents function, use it with FILE_APPEND flag:

file_put_contents($file, $data, FILE_APPEND);

if you're using fopen(), use 'a' mode instead of 'w'