delete all occurrences of $b in a php cookie

[kalster]

in the code below, $b could be any value. consider that many cookies have been created with the increment of $b. i need to delete all cookies of $b and regardless of the value.

 

setcookie("read" . $a . $b, '', time()-10000);

 

so when the code below is as follows...

 

setcookie("read" . 1 . 5, '', time()-10000);

setcookie("read" . 1 . 6, '', time()-10000);

 

...then i need to delete all occurrences of the cookies.

[requinix]

Loop through $_COOKIE and delete any cookie that matches that name "pattern".