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xwin

How do I make something that only lets a certain number of entries be on a page, and after that it creates a new page, using text files as a database. Say I want to limit it to 15 entries per page. How would I go about doing that?

diego25

Do you want to generate the pages once, and let the users use those static pages, or are the pages going to be created dynamically everytime someone requests them?

Diego

xwin

Dynamically, because more entries are being added all the time.

diego25

How is your text file structured? Is it one line per entry? If it is, then, for example, if you wanted the third 15 entries, you could just call fgets() 30 times first, to get rid of the first 30 entries, and the next 15 entries will be the third 15 entries.

Diego

xwin

Um.

Yes, it's one line per entry.

I don't understand what you mean though. ;-/

xwin

Any ideas?

altexis

fgets() reads a line from a text file, but you cannot get into any random line because usually every line has its own length.

so every time you have to read the file from the beginning until you reach the line you want to show first

for example, if you wanted the third 15 entries, you could just call fgets() 30 times first, to get rid of the first 30 entries, and the next 15 entries will be the third 15 entries

xwin

But I want it to be able to do that for thousands of entries, without me having to preset in 15, 30, 45, 60, and so on.

altexis

If its about thousands of entries you'd better consider putting your lines in a database

or create a second file as an index, holding the positions of the beginning of each line. in this case you should lookup and use the fseek() function quite a lot

but before you do that try to picture your files... its something like:
This is the first line.This is the second line.This is the third line....

Imagine all of the lines stuck in one! you will have to know where each line starts. The computer knows when the next line starts because it finds some characters with ascii values 13 or 10 ... same as \r \n