how to delete all cookies of my website in php

Question

I m wondering if I can delete all my website s cookies when a user click on logout  because I used this as function to delete cookies but it isn t work properly   setcookie  user  false     Is there a way to delete one domain s cookies in PHP

User · Answer

I know this question is old  but this is a much easier alternative   header remove      But be careful  It will erase ALL headers  including Cookies  Session  etc   as explained in the docs

User · Answer

You should be aware of various tracking tools like Google Analytics also use cookies on your domain and you don t want to delete them  if you want to have correct data in GA   The only solution I could get working was to set the existing cookies to null  I couldn t delete the cookies from the client   So for logging a user out I use the following   setcookie  username   null  time    this- gt seconds        this- gt domain  0   setcookie  password   null  time    this- gt seconds        this- gt domain  0     Of course this doesn t delete ALL cookies

User · Answer

The provided Answers did not solve my problem   It did not    Remove parent domain cookies  from a b c  remove b c  cookies   Remove cookies from a higher path other then root    My script does  see    lt  php function unset cookie  name         host     SERVER  HTTP HOST         domain   explode       host  0         uri     SERVER  REQUEST URI         uri   rtrim explode       uri  0              if   uri  amp  amp   filter var  file        uri  FILTER VALIDATE URL             throw new Exception  invalid uri       uri               parts   explode       uri         cookiePath           foreach   parts as  part             cookiePath       ltrim  cookiePath      part                  setcookie  name      1   cookiePath              domain    domain          do               setcookie  name      1   cookiePath    domain             while  strpos   domain           false  amp  amp    domain   substr   domain  1   strpos   domain                    It is not the most pretty safe optimal solution  so use this only if you do not known the cookie-path and or cookie-domain s  Or use the idea in order to create your version

User · Answer

When you change the name of your Cookies  you may also want to delete all Cookies but preserve one   if  isset   COOKIE         foreach   COOKIE as  name   gt   value            if   name     preservecookie      Name of the cookie you want to preserve                        setcookie  name      1      Better use 1 to avoid time problems  like timezones             setcookie  name      1                            Also based on this PHP-Answer

User · Answer

I agree with some of the above answers  I would just recommend replacing  time  -1000  with  1   A value of  1  means January 1st  1970  which ensures expiration 100   Therefore   setcookie  name      1   setcookie  name      1

User · Answer

PHP setcookie    Taken from that page  this will unset all of the cookies for your domain      unset cookies if  isset   SERVER  HTTP COOKIE            cookies   explode        SERVER  HTTP COOKIE         foreach  cookies as  cookie             parts   explode       cookie            name   trim  parts 0            setcookie  name      time  -1000           setcookie  name      time  -1000                  http   www php net manual en function setcookie php 73484

User · Answer

make sure you call your setcookie function before any output happens on your site   also  if your users are logging out  you should also delete invalidate their session variables

User · Answer

I had to add the following to the top answer to actually remove a few cookies that wouldn t go away  foreach   COOKIE as  cook        setcookie  cook      time  -1000       setcookie  cook      time  -1000

User · Answer

past   time   - 3600  foreach     COOKIE as  key   gt   value         setcookie   key   value   past             Even better is however to remember  or store it somewhere  which cookies are set with your application on a domain and delete all those directly  That way you can be sure to delete all values correctly

User · Answer

lt  php       parse str http build query   COOKIE   arr         foreach   arr as  k  gt  v            setCookie   k     1000

User · Answer

Use the function to clear cookies   function clearCookies  clearSession   false         past   time   - 3600      if   clearSession     false           sessionId   session id        foreach    COOKIE as  key   gt   value                if   clearSession     false     value      sessionId              setcookie  key   value   past                  If you pass true then it clears session data  otherwise session data is preserved

User · Answer

All previous answers have overlooked that the setcookie could have been used with an explicit domain  Furthermore  the cookie might have been set on a higher subdomain  e g  if you were on a foo bar tar com domain  there might be a cookie set on tar com  Therefore  you want to unset cookies for all domains that might have dropped the cookie    host   explode        SERVER  HTTP HOST      while   host         domain         implode       host        foreach    COOKIE as  name   gt   value            setcookie  name      1        domain              array shift  host

[php] how to delete all cookies of my website in php

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