---- EXPECTED OUTPUT
---> 1. Via a return by ref function call, assign by reference the return value of a function that returns by value:

Notice: Only variable references should be returned by reference in %s on line 16
int(5)
int(100)

---> 2. Via a return by ref function call, assign by reference the return value of a function that returns a constant by ref:

Notice: Only variable references should be returned by reference in %s on line 8
int(5)
int(100)

---> 3. Via a return by ref function call, assign by reference the return value of a function that returns by ref:
int(5)
int(5)
---- 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