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

Its no different to any other variable, e.g.

function sendemail($id,$userid){
  echo $arr["foo"]; 
}

$arr = array("foo" => "bar");
sendemail($arr, $userid);