How can multiple values be stored and retrieved from cookies in PHP?

To store multiple values in cookies in PHP, you can serialize an array of values before setting the cookie, and then unserialize the array when retrieving the cookie. This allows you to store and retrieve multiple values in a single cookie. 

// Store multiple values in a cookie
$values = array('value1', 'value2', 'value3');
setcookie('myCookie', serialize($values), time() + 3600);

// Retrieve multiple values from a cookie
if(isset($_COOKIE['myCookie'])) {
    $values = unserialize($_COOKIE['myCookie']);
    foreach($values as $value) {
        echo $value . "<br>";
    }
}

Keywords

PHP cookies setcookie $_COOKIE array

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