I don't know php, I just edit it for my needs, please excuse my possible mis-use of terms. I think the fact I am searching for the wrong terms has made this difficult to find a solution for, which is why I am asking.
Basically I need to define a postid, then use it multiple ways.
$number = 455;
So above you can see the number of a postid.
Then within my templates I am using it as follows.
echo get_the_permalink( '$number' );
How do I make that work?
echo get_the_permalink( '455' );
^ works fine, but it means me typing that id a lot.