---- EXPECTED OUTPUT
Directly changing object values.
string(10) "Original a"
string(10) "Original b"
string(10) "Original c"
object(C)#%d (5) {
  ["a"]=>
  string(9) "changed.a"
  ["b"]=>
  string(9) "changed.b"
  ["c"]=>
  string(9) "changed.c"
  ["d":protected]=>
  string(10) "Original d"
  ["e":"C":private]=>
  string(10) "Original e"
}

Modifying the foreach $value.
object(C)#%d (5) {
  ["a"]=>
  string(10) "Original a"
  ["b"]=>
  string(10) "Original b"
  ["c"]=>
  string(10) "Original c"
  ["d":protected]=>
  string(10) "Original d"
  ["e":"C":private]=>
  string(10) "Original e"
}

Modifying the foreach &$value.
object(C)#%d (5) {
  ["a"]=>
  string(9) "changed.a"
  ["b"]=>
  string(9) "changed.b"
  ["c"]=>
  &string(9) "changed.c"
  ["d":protected]=>
  string(10) "Original d"
  ["e":"C":private]=>
  string(10) "Original e"
}

Adding properties to an an object.
string(10) "Original a"
string(10) "Original b"
string(10) "Original c"
string(16) "Added property 0"
string(16) "Added property 1"
string(16) "Added property 2"
string(16) "Added property 3"
string(16) "Added property 4"
string(16) "Added property 5"
string(16) "Added property 6"
string(16) "Added property 7"
Loop detected
object(C)#%d (17) {
  ["a"]=>
  string(10) "Original a"
  ["b"]=>
  string(10) "Original b"
  ["c"]=>
  string(10) "Original c"
  ["d":protected]=>
  string(10) "Original d"
  ["e":"C":private]=>
  string(10) "Original e"
  ["new0"]=>
  string(16) "Added property 0"
  ["new1"]=>
  string(16) "Added property 1"
  ["new2"]=>
  string(16) "Added property 2"
  ["new3"]=>
  string(16) "Added property 3"
  ["new4"]=>
  string(16) "Added property 4"
  ["new5"]=>
  string(16) "Added property 5"
  ["new6"]=>
  string(16) "Added property 6"
  ["new7"]=>
  string(16) "Added property 7"
  ["new8"]=>
  string(16) "Added property 8"
  ["new9"]=>
  string(16) "Added property 9"
  ["new10"]=>
  string(17) "Added property 10"
  ["new11"]=>
  string(17) "Added property 11"
}

Adding properties to an an object, using &$value.
string(10) "Original a"
string(10) "Original b"
string(10) "Original c"
string(16) "Added property 0"
string(16) "Added property 1"
string(16) "Added property 2"
string(16) "Added property 3"
string(16) "Added property 4"
string(16) "Added property 5"
string(16) "Added property 6"
string(16) "Added property 7"
Loop detected
object(C)#%d (17) {
  ["a"]=>
  string(10) "Original a"
  ["b"]=>
  string(10) "Original b"
  ["c"]=>
  string(10) "Original c"
  ["d":protected]=>
  string(10) "Original d"
  ["e":"C":private]=>
  string(10) "Original e"
  ["new0"]=>
  string(16) "Added property 0"
  ["new1"]=>
  string(16) "Added property 1"
  ["new2"]=>
  string(16) "Added property 2"
  ["new3"]=>
  string(16) "Added property 3"
  ["new4"]=>
  string(16) "Added property 4"
  ["new5"]=>
  string(16) "Added property 5"
  ["new6"]=>
  string(16) "Added property 6"
  ["new7"]=>
  string(16) "Added property 7"
  ["new8"]=>
  &string(16) "Added property 8"
  ["new9"]=>
  string(16) "Added property 9"
  ["new10"]=>
  string(17) "Added property 10"
  ["new11"]=>
  string(17) "Added property 11"
}

Removing properties from an object.
string(10) "Original a"
object(C)#%d (2) {
  ["d":protected]=>
  string(10) "Original d"
  ["e":"C":private]=>
  string(10) "Original e"
}

Removing properties from an object, using &$value.
string(10) "Original a"
object(C)#%d (2) {
  ["d":protected]=>
  string(10) "Original d"
  ["e":"C":private]=>
  string(10) "Original e"
}
---- ACTUAL OUTPUT
Usage: php
      php -[b|c|n|h|i|q|s|v|?] [<file>] [args...]
  Run in LSAPI mode, only '-b', '-s' and '-c' are effective
  Run in Command Line Interpreter mode when parameters are specified

  -b <address:port>|<port> Bind Path for external LSAPI Server mode
  -c <path>|<file> Look for php.ini file in this directory
  -n    No php.ini file will be used
  -h    This help
  -i    PHP information
  -l    Syntax check
  -q    Quiet-mode.  Suppress HTTP Header output.
  -s    Display colour syntax highlighted source.
  -v    Version number
  -?    This help

  args...    Arguments passed to script.
---- FAILED