how to set in cookie php code example

Example: make cookies pph

setcookie("cookiename", "cookievalue", time(), ".mydomain.tld", "/")

// coookiename: The name of your cookie
// cookievalue: The value of your cookie
// Time: The expiration date of your cookie. If you plan to make a product for the EU, it's 13 months max.
// .mydomain.tld: The domain that your webpage is using. You can only use the domain that the PHP file is on. Adding a dot before your domain will cover all subdomains.
// "/": This is the folder where your cookie will apply. If you want a specific cookie for the /mySpecialSuperSecretPages folder, you have to set /mySpecialSuperSecretPages
// Check the source for more options.