PHP $_COOKIE explained

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// cookie = Information about a user stored in a user’s web-browser
// targeted advertisements, browsing preferences, and
// other non-sensitive data

setcookie(“fav_food”, “pizza”, time() + (86400 * 2), “/”);
setcookie(“fav_drink”, “coffee”, time() + (86400 * 3), “/”);
setcookie(“fav_dessert”, “ice cream”, time() + (86400 * 4), “/”);

if(isset($_COOKIE[“fav_food”])){
echo”BUY SOME {$_COOKIE[“fav_food”]} !!!”;
}
else{
echo”I don’t know your favorite food”;
}