Now I found why under some sizes it worked. It was because in the config file php.ini, the variable output_buffering was set to "4096". When the buffer reached that size the rest of the cookie cannot be stored and failed :) well, that's what I suppose reading the documentation of this option: ; Output buffering allows you to send header lines (including cookies) even ; after you send body content, at the price of slowing PHP's output layer a ; bit. You can enable output buffering during runtime by calling the output ; buffering functions. You can also enable output buffering for all files by ; setting this directive to On. If you wish to limit the size of the buffer ; to a certain size - you can use a maximum number of bytes instead of 'On', as ; a value for this directive (e.g., output_buffering=4096). Thank you all :) 2006/9/19, German Piqué <extremdur2@xxxxxxxxx>:
I found the problem... and the solution To test it, i set a group of messages in the code of the class cookie when the variable "debug" is active. That was leading to all the errors. It's like the script was generating html code and after that it tries to modify the cookies. I set the debug variable to false and only show the cookies' contents after the writing to it, and it works with all the strings length I tested. BTW, how many bytes a caracter in a string consume? In C a char is equal to one byte, but I don't know if in php is the same. I want to know to limit in the class the cookies' size. Thanks to all :) 2006/9/19, German Piqué <extremdur2@xxxxxxxxx>: > > > > ---------- Forwarded message ---------- > From: German Piqué < extremdur2@xxxxxxxxx> > Date: 19-sep-2006 10:38 > Subject: Re: cookies time? - now it doesn't write > To: "Frank M. Kromann" < frank@xxxxxxxxxxxx> > > Now works... Oo > > But i have another problem. > > My script must check a DB and inform of the changes that have been > produced since the last update. I tried two different ways to do it: > > 1) Use a file in the server to store the diferences > > 2) Use cookies to store the info. > > The first solution has the problem that the update will take place for > all the users that access the script. I think that would be risky for the > integrity of the file or the info retrieved in a case of to much accesses... > > > The second option i think that is better. But i encounter problems. > Depending on the content, the setcookie returns an error. The idea of the > code is that first search if the cookie exists. If yes, shows it. otherwise, > no. After that, when the access to the DB is made, it stores the results in > the cookie to be reused again. I tried to avoid the 4 KBs limit problem by > creating a class that controls the lenght of the string and if it surpases > the limit, creates another cookie, with the increment of a counter attatchet > to the base name of the cookie. > > It's curious that if I put the string manually, it can be larger than > one string created through the union of one array's cells. > > Could it be a memory problem, like the class is taking all of it leaving > nothing to the cookies? I think that this sentence has no sense but i don't > know what it could be. > > I tried to destroy the cookies after reading them, too. But when I try > to re-create it later in order to insert the new info causes an error, and > in the next refresh, there are no cookies and I can write to the cookies!! > Then, in the next refresh, again I can read the cookie, but I can't write to > it. In the next, there are no cookis and I can write again... Why? Why if > the cookie is destroyed I can write it but if it's create I can't rewrite > it? > > That's the cause that leade me to think that it's a memory problem. > > Well... any ideas? > > > > 2006/9/19, German Piqué <extremdur2@xxxxxxxxx>: > > > > So, it's another problem. -_- I'll give it a try. > > > > 2006/9/18, Frank M. Kromann <frank@xxxxxxxxxxxx>: > > > > > both time() and mktime() works fine on Windows. > > > > > > - Frank > > > > > > > Well, reading the documentation about cookies i saw that the > > > function > > > time() > > > > works using UNIX epochs. If I try to use this function (or mktime) > > > in > > > > windows, the php shows a white page, like there's an error > > > somewhere. > > > > > > > > It's a problem with windows machine's or there's another solution > > > to > > > this? > > > > > > > > Meanwhile, I put no time option (so cookie expires at the end of > > > the > > > > session) but i would like to try to set up a timeout. > > > > > > > > I don't demand absolute solutions, I only want a clue to work on. > > > > > > > > Thank you :) > > > > > > > > > > > > > > > > > > > > > > >
