[FIXED] How do I use cookies with Foreach

Issue

I adopted code given in this code: https://www.w3schools.com/php/php_cookies.asp and How do I use cookies to store users' recent site history(PHP)?

and i changed the code with the link above

Example: user clicks on url

file.php?id=200&value=woman
file.php?id=150&value=woman
file.php?id=250&value=girl 

and this code is here:

$id = $_GET['id'];
$value = $_GET['value'];
$cookie_id = $id;
$cookie_value = $value ;
setcookie($cookie_id, $cookie_value, time() + (86400 * 30), "/");
if(isset($_COOKIE[$cookie_id])) {
    foreach ($_COOKIE[$cookie_id] as $cookie_id => $value) { 
        echo 'id: '.$cookie_id.' '; echo ', value: '.$cookie_id.' <br>'; 
    }
} else {
    echo 'Cookie named '.$cookie_id.' is not set!';
}

Out: the output of the code above should be as follows

id: 200, value: woman
id: 150, value: woman
id: 250, value: girl

Error: this error shows me this way.

Warning: Invalid argument supplied for foreach() in /Applications/XAMPP/cookie.php on line 7

and also I found this code Foreach loop with cookies , but failed:

What could be the reason and what am I doing wrong?

Solution

Remove [$cookie_id] from $_COOKIE[$cookie_id]. Don't name index in foreach loop as prev variable name - $cookie_id. Name it as $ind=>$val. For debugging make print_r($_COOKIE); before loop and you'll see with what you can work further.

Answered By - mohsen

Answer Checked By - Mary Flores (PHPFixing Volunteer)