The commands start and use an output buffer, a chunk of memory that stores all
the output on the server until the ob_flush, the buffer flush, function is
called. You need to be aware that in high load situations this may adversly
affect performance since it loads the servers memory, also be aware that you
may hit a memory limit for large pages. This is server / OS depandant so you
may want to read up on server documentation
bastien
----------------------------------------
> To: php-general@lists.php.net; [EMAIL PROTECTED]
> Date: Sat, 18 Aug 2007 16:39:29 +0200
> From: [EMAIL PROTECTED]
> CC: [EMAIL PROTECTED]; php-general@lists.php.net
> Subject: Re: [PHP] Cookies and sent headers
>
> ob_start() at the beginning and ob_end_flush() at the end of the PHP
> section seems to do the trick albeit I've still problems to understand
> why. The description in the manual is rather sparse unfortunately. Is
> there any more information about what's going on?
>
> O. Wyss
>
> Wouter van Vliet / Interpotential wrote:
> > You best option would be to go through all of your include'd or require'd
> > files and make sure there is no whitespace before and after you open your
> > php tags. Those are often the cause for such problems. The easy way would
> > indeed be to use output buffering. In that case, put the call to ob_start();
> > on the first line of the file you're calling. You will still have to make
> > sure to not have any whitespace before your >
> > To even bypass that, the output_buffering ini setting might be useful. Alter
> > it in your php.ini if you can, otherwise try your apache vhost configuration
> > or .htaccess. The syntax there is:
> >
> > php_flag output_buffering On
> >
> > Good luck!
> >
> > On 18/08/07, Kelvin Park wrote:
> >> Kelvin Park wrote:
> >>> Otto Wyss wrote:
> >>>> If built a simple login page and store any information within
> >>>> $_SESSION's. Yet I'd like to move these into cookies but I always get
> >>>> an error about sent headers. Is there a way to circumvent this
> >>>> problem without changing too much in the page?
> >>>>
> >>>> The setting of the cookies happens just at the end of the page.
> >>>>
> >>>> if (!$errortext and $Anmelden) {
> >>>> if (!empty($Permanent)) {
> >>>> $expires = time()+ 365 * 86400; // 365 days
> >>>> setcookie ("l.Lastname", $_SESSION['l_Lastname'], $expires);
> >>>> setcookie ("l.Firstname", $_SESSION['l_Firstname'], $expires);
> >>>> setcookie ("l.Email1", $_SESSION['l_Email1'], $expires);
> >>>> setcookie ("l.Email2", $_SESSION['l_Email2'], $expires);
> >>>> }
> >>>> echo "";
> >>>> exit;
> >>>> }
> >>>>
> >>>> O. Wyss
> >>>>
> >>> ob_start() might help
> >>>
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> >>
> >>
> >
> >
>
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