question on calling a function (should be a simple one)

[nimzie]

function relatedcontent_get_nodes(&$node) {
  $nodes = $node->nodes; // Keeps $node immutable.
  asort($nodes, SORT_NUMERIC);
  return array_keys($nodes);
}

How do I call it and how must I initialize &$node?

 

Thanks for your assistance.

 

Adam

[nimzie]

I know this is almost a ridiculous question, but I can't figure out the &$ bit and how to init/call/use this function in my code.

 

Pretty please help!

 

Adam

[JonnoTheDev]

The & is passing the variable by reference so its value is changed outside the scope of the function

 

i.e

 

 

function add(&$x) {

$x = $x+1;

}

 

 

$x = 1;

add($x);

print $x; // should print 2