Question

I would like to do something like:

function func($var1 = 'Hello', $var2 = "{$var1} World") { echo $var2; }

This is not possible!

My idea is to avoid extra code lines inside my function but I don’t know if that is possible.

Does someone know if a similar procedure is possible in php?
Thanks.

Answer 1

Like the other answers say, you can’t do this directly in PHP. My solution to these situations is usually to mimic the behaviour using something like this

function func($var1 = 'Hello', $var2 = null)
{
  if ($var2 === null)
    $var2 = $var1.' Worls';
}

But the big downside is you’re copying PHP behaviour so you’ll have to throw your own exceptions when variables are forgotten, the wrong type etc.