---- EXPECTED OUTPUT
0 => ab
1 => a
k => ab
k => a
k => ab
array(1) {
  [0]=>
  int(5)
}
k2 => ab
k1 => 6
2 => 7
3 => k2
k1 => 9
10 => ab
k2 => ab
k1 => 12
array(1) {
  [0]=>
  int(13)
}
11 => k2
k1 => 14
array(1) {
  [15]=>
  string(2) "ab"
}
---- 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