to run:
# php run.php

output:
array(4) {
  ["UserID"]=>
  string(1) "1"
  ["Username"]=>
  string(3) "bob"
  ["FirstName"]=>
  string(3) "Bob"
  ["LastName"]=>
  string(6) "Bobson"
}
array(4) {
  ["UserID"]=>
  string(1) "2"
  ["Username"]=>
  string(4) "john"
  ["FirstName"]=>
  string(4) "John"
  ["LastName"]=>
  string(7) "Johnson"
}
array(4) {
  ["UserID"]=>
  string(1) "3"
  ["Username"]=>
  string(3) "joe"
  ["FirstName"]=>
  string(3) "Joe"
  ["LastName"]=>
  string(6) "Joeson"
}