Question

How to remove a cookie with PHP

Answer 1

/*
bool setcookie ( string $name [, string $value = "" [, int $expire = 0 
                                                    [, string $path = "" 
                                                    [, string $domain = "" 
                                                    [, bool $secure = false 
                                                    [, bool $httponly = false ]]]]]] )
 
*/
 

setcookie($cookie_name, null, -1);

if (!isset($_COOKIE[$cookie_name])) 
    echo "Cookie named 'user_name' is not set";

      
/*
run:
  
Cookie named 'user_name' is not set 

*/

 

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Answer 2

//setcookie("user", "Tim", time() + 86400, "/"); 

// Creates a cookie with name "user"
// (Optional) Value of the cookie is "Tim"
// (Optional) Cookie will expire in 1 day (86400 seconds)

unset($_COOKIE['user']);

if (isset($_COOKIE['user'])) 
    echo 'User name: ' . $_COOKIE['user'];
else
    echo 'Cookie is not Set';


 
/*
run: 

Cookie is not Set
  
*/ 

 

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