[parameters]
  true = true
  true_comment = true ; comment
  false = false
  null = null
  on = on
  off = off
  yes = yes
  no = no
  none = none
  constant = PHP_VERSION
  12 = 12
  12_string = '12'
  12_comment = 12 ; comment
  12_string_comment = '12' ; comment
  12_string_comment_again = "12" ; comment
  -12 = -12
  0 = 0
  1 = 1
  0b0110 = 0b0110
  11112222333344445555 = 1111,2222,3333,4444,5555
  0777 = 0777
  255 = 0xFF
  100.0 = 1e2
  -120.0 = -1.2E2
  -10100.1 = -10100.1
  -10,100.1 = -10,100.1