foo
array(2) {
  [0]=>
  string(8) "function"
  [1]=>
  string(3) "bar"
}
__construct
array(2) {
  [0]=>
  string(11) "constructor"
  [1]=>
  string(3) "bar"
}
bar
array(2) {
  [0]=>
  string(6) "method"
  [1]=>
  string(3) "bar"
}
__invoke
array(2) {
  [0]=>
  string(6) "invoke"
  [1]=>
  string(3) "bar"
}
{closure}
array(2) {
  [0]=>
  string(7) "closure"
  [1]=>
  string(3) "bar"
}
bool(false)