Call function simplest syntax #148

Hello i have the function permalink and i want to call this like the following example

example
a href="/sitelet?url=https%3A%2F%2Fgithub.com%2Ffeulf%2Fraintpl3%2Fissues%2F%257Bpermalink%3A%281%29%257D">link /a
or
a href="/sitelet?url=https%3A%2F%2Fgithub.com%2Ffeulf%2Fraintpl3%2Fissues%2F%257B%24permalink%3A%281%29%257D">link /a

it is possible?

function permalink($id){
     // do something...
     return $id; // return something...
}