Question

With Smarty 3.0, I would like to do, in order to avoid code repetition:

{$assocArray = ['param1' => 'value1', 'param2' => 'value2', ...]}
{magicFunction name='someHelper' params=$assocArray}

instead of

{$assocArray = ['param1' => 'value1', 'param2' => 'value2', ...]}
{someHelper param1=$assocArray['value1'] param2=$assocArray['value2'] ...}

I’ve found {call} but is not exactly what I’m looking for.

I will try to do it myself, but I’m open to suggestions (or even a code snippet to copy/paste :-p)

Answer 1

You could create a wrapper function named unroll_parameters defined as below.

function unroll_params ($params, &$smarty) {
   return call_user_func_array ($params['name'], $params['args']);
}

That will make you able to use the following:

{unroll_params name='someFunction' args=$assocArray}

---

If you’d like to access $smarty inside the called function, append the value to $params['args'] before calling call_user_func_array.

return call_user_func_array (
  $params['name'], array_merge ($params['args'], array ($smarty))
);

Note: If the function declaration is like: function foo ($var1,$var2, ..., $smarty)