I'm facing an issue while trying to set a cookie for a PHP variable. I've been working on a web application where I need to store some information in a cookie so that I can use it later. I've searched through the PHP manual and some online tutorials, but I couldn't find a clear explanation on how to achieve this.
To give you some context, here's what I'm trying to do: I have a login form where users enter their credentials. After successful authentication, I want to store their username in a cookie (let's say the variable is $username) so that I can display a personalized greeting on subsequent page visits.
I've tried using the setcookie() function, but I'm not sure about the correct syntax and parameters to use. Can anyone guide me on how to set a cookie for a PHP variable? Also, it would be great if you could provide some code examples or point me in the right direction.
Thanks in advance!