Can I use operators as function callback in PHP?

Question

Suppose I\'ve the following function:

function mul()
{
   return array_reduce(func_get_args(), \'*\');
}

Is is possible to use the * operat

Answer 1

In this specific case, use array_product():

function mul() {
  return array_product(func_get_args());
}

In the general case? No, you can't pass an operator as a callback to a function. You would at least have to wrap it in a function:

function mul() {
   return array_reduce(func_get_args(), 'mult', 1);
}

function mult($a, $b) {
  return $a * $b;
}