Tech-Recipes - Latest Comments in PHP: Delete or expire a browser cookie

Re: PHP: Delete or expire a browser cookie

Vkijust4u — Tue, 26 Jul 2011 16:08:54 -0000

Thanks dude...u owe me.....

Re: PHP: Delete or expire a browser cookie

Kirill — Tue, 17 May 2011 06:04:24 -0000

Recommended by who? Here is a simple explanation why 1 is better than any of these mathematical calculations inside of setcookie command.

Re: PHP: Delete or expire a browser cookie

sandip kalbhile — Fri, 18 Feb 2011 04:52:15 -0000

nice this is smart programming

Re: PHP: Delete or expire a browser cookie

boopathi — Tue, 01 Feb 2011 06:17:40 -0000

Hi Experts,

just i want to know about how to create cookies using CORE PHP

Advance Thanks

Regards
Mr . Dhenu

Re: PHP: Delete or expire a browser cookie

c0debreaker — Wed, 26 Jan 2011 00:22:32 -0000

no don't use unset() use setcookie()
the main unsuccessfull delete or expire cookie is because you made a cookie in dive folder inside host and you can't delete in diferent folder outside you made and cookie path is set value already.

for better security and successfully use :
setcookie("cookiename","",mktime(12,0,0,1, 1, 1990), "/");

Re: PHP: Delete or expire a browser cookie

Jarrod Christman — Tue, 11 Jan 2011 14:59:15 -0000

Don't use unset($_COOKIE['variablename']). That will only unset the variable from the $_COOKIE superglobal array, it will not expire (delete) the cookie itself.

Re: PHP: Delete or expire a browser cookie

Erick S. — Thu, 06 Jan 2011 14:38:43 -0000

Somehow it seems you always need to know the 'name of a cookie'...But if you don't know this?

I am busy with protecting pages from a Wordpress website. Protecting works fine...but now I want provide a 'log out' button somewhere...but whatever I do...people stay logged in.

I want them to click on the 'log out' button and then end up on the startpage of the website...on which are 2 options: enter website - member login

All Javascript and PHP trickery I have tried always need the name of the Cookie.

And when I get the name of the Cookie (with the webdevelopers toolbar in Firefox) and put this in the right position...it never works,

Help is needed...sigh...

Re: PHP: Delete or expire a browser cookie

middlewhere — Tue, 04 Jan 2011 01:37:50 -0000

Only the following worked for me:

unset($_COOKIE['the_cookie_name']);

Thanks Webmaster Trainman2k

Re: PHP: Delete or expire a browser cookie

developer in php — Thu, 30 Dec 2010 04:22:04 -0000

now i can easily delete cookies..
Thank you...!

Re: PHP: Delete or expire a browser cookie

Webmaster Trainman2k — Tue, 21 Dec 2010 03:17:55 -0000

To delete a cookie by resetting it has severe and drastic limits.
I have found that when using PHP, after the header has had any output, you cannot 'reset' a cookie that way to make it expire.

In my opinion, a better way, (from a PHP programers' view), is to use:
unset($_COOKIE['the_cookie_name']);

From my experience, doing it this way, you can delete a cookie anywhere within the PHP code without a problem and not restricted to when or where you delete it..

Re: PHP: Delete or expire a browser cookie

Arpit — Wed, 23 Jun 2010 04:28:01 -0000

i have been using this trick and it is good but its not working for my site.
can it be a problem with my host?

Re: PHP: Delete or expire a browser cookie

richhessler — Thu, 15 Apr 2010 21:16:18 -0000

Thanks for the tip!

Re: PHP: Delete or expire a browser cookie

LaNN — Mon, 15 Mar 2010 21:14:15 -0000

You notice that the time different between server and client will make the cookie deletion unsuccessful. Don't assume time between server and client cannot be different more than 1 hour. If I browse your site in different time zone, the cookie possibly not to be deleted. Thus we need to set the time more than 24hours in the past.
Easier to write setcookie('user','',1)
But recommended to write setcookie('user','',time()-60*60*24*2) // 2days past.

Re: PHP: Delete or expire a browser cookie

Artem Egorov — Sun, 06 Dec 2009 16:12:26 -0000

Good article for php beginer )

Re: PHP: Delete or expire a browser cookie

hnurzaman — Sun, 27 Sep 2009 19:22:35 -0000

Good Idea. This is a smart way to delete cookies.
Thanks

Re: PHP: Delete or expire a browser cookie

Román — Wed, 23 Sep 2009 15:45:27 -0000

Nice trick!