updated file... Umm don't know what to say!

King_of_Piracy

I was wondering if there is anyway that php can read file sizes in bytes, kb's, and mb's?

If php can not do that, please post that it is not possible! Thanks ppl

If php can do that, my question is:

How can I make a php code to read the file size, and if the size has changed, it adds the changed file link to my updates.html file

Instead of me having to change my updates.html file manually!

Sounds complicated to me!!!

I update my pages almost everyday, probably like millions of others. So I think this script would cut editing the update pages in half or more than half!

rickpugh

I can tell you that PHP can read the size of a file....

It's base "unit" is bytes and it can be formated to use other units (KBytes, Mg, etc..)

If you use the "Search PHP Manual" function on this site and querey for "file" you will be able to find the function and properties to help explain this better.

I can't help you much with your other questions.

Best of luck.... hope my limited input is useful!

King_of_Piracy

That helps me man, I am now closer to the answer than I was 30 minutes ago.

Thanks for the reply!!!

King_of_Piracy

Sweet I got this from the manual:

filesize
(PHP 3, PHP 4 )

filesize -- Gets file size
Description
int filesize ( string filename)

Returns the size of the file in bytes, or FALSE in case of an error.

The results of this function are cached. See clearstatcache() for more details.

This function will not work on remote files; the file to be examined must be accessible via the server's filesystem.

So if I understand this correctly, I will use the code

int filesize (myfile.ext)

to check if it has changed.

Change php will have to change a file, if size change is detected, wouldn't I have to use "if" and "else" codes also?

So if I use if and else wouldn't I setup the php file something close to this?

<? php

if (int filesize (myfile.ext)) has changed fwrite("\updates.html");

else (int filesize(myfile.ext)) do nothing;

I have a HUGH feeling that I am completely wrong on this here!!!!

leatherback

Hi Pirate,

The 'int' means that the function returns an integer value. The way you get to use it is:

$size = filesize($thisfile);

If you need to check whether the size has changed, you should keep track of the previous size. You can do this in a database such as mysql, or in a textfile. The previous is much easier to get going, since it contains all sorts of functionality for selecting and sorting, whereas for files you'd have to write many of them yourselve.

If you hget cracking at this, and decide which system you want to use, we cna help you out.l But we cannot make the fundamental decisions on how to setup the system. We can only give a hint which is easiest. (Database).

[edit]
Perhaps you have missed this one (I intially forgot about it):
filectime

(PHP 3, PHP 4, PHP 5)
filectime -- Gets inode change time of file
Description
int filectime ( string filename )

Returns the time the file was last changed, or FALSE in case of an error. The time is returned as a Unix timestamp.

You could use this to see whether a file was changed since a certain date?
[/edit]