Can we pass an array as parameter in any function in PHP?

Question

I have a function to send mail to users and I want to pass one of its parameter as an array of ids.

Is this possible to do? If yes, how can it be done?

Suppose w

Answer 1

I composed this code as an example. Hope the idea works!

";
  }
  foreach ($friends as $friend) {
  greetings($friend);
  }
?>