hhvm/hphp/test/slow/dynamic_functions/1180.php.expect

array(0) {
}
array(1) {
  [0]=>
  string(1) "o"
}
array(2) {
  [0]=>
  string(1) "o"
  [1]=>
  string(1) "p"
}
array(3) {
  [0]=>
  string(1) "o"
  [1]=>
  string(1) "p"
  [2]=>
  string(1) "q"
}