Making Dynamic Text With PHP and HTML

I have a question, I am making some sort of personal assistant site for school and stuff.
I am very new to PHP and I want that the homepage displays;
‘Goodmorning Reno!’

I got that already but now I want to make it dynamic so when it is Morning it says; Goodmorning and if it is Noon it says; Good afternoon.

My question is how do I do this because im at a loss.

And if it is not possible than I would love other ideas.

Thanks,

Reno

>Solution :

This code i think thath will help you, if i current understand

code:

<?php
$hour = date('H');
if($hour >= "13"){
    echo("Goodafternoon Reno!");
}else{
    echo("Goodmorning Reno!");
}
?>

You can change the time slot by simply changing the value in the if