is false
123
1230000.00
1230000 double quoted
$x single quoted
1230000 this is part of the string
array(3) {
  [0]=>
  int(1)
  [1]=>
  int(2)
  [2]=>
  int(3)
}
array(3) {
  [0]=>
  int(1)
  [1]=>
  int(2)
  [2]=>
  int(3)
}
array(1) {
  [0]=>
  int(20)
}
array(2) {
  [0]=>
  string(5) "value"
  ["key2"]=>
  string(6) "value2"
}
Steve
Bob
visible outside of the class