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<?php foreach (['NULL', null, 0, false, ''] as $foo) { var_dump( $foo, is_null($foo) ); echo "\n\n"; }
Finding entry points
Branch analysis from position: 0
2 jumps found. (Code = 77) Position 1 = 1, Position 2 = 9
Branch analysis from position: 1
2 jumps found. (Code = 78) Position 1 = 2, Position 2 = 9
Branch analysis from position: 2
1 jumps found. (Code = 42) Position 1 = 1
Branch analysis from position: 1
Branch analysis from position: 9
1 jumps found. (Code = 62) Position 1 = -2
Branch analysis from position: 9
filename:       /in/QbHJi
function name:  (null)
number of ops:  11
compiled vars:  !0 = $foo
line      #* E I O op                           fetch          ext  return  operands
-------------------------------------------------------------------------------------
    3     0  E > > FE_RESET_R                                       $1      <array>, ->9
          1    > > FE_FETCH_R                                               $1, !0, ->9
    4     2    >   INIT_FCALL                                               'var_dump'
    5     3        SEND_VAR                                                 !0
    6     4        TYPE_CHECK                                    2  ~2      !0
          5        SEND_VAL                                                 ~2
          6        DO_ICALL                                                 
    9     7        ECHO                                                     '%0A%0A'
    3     8      > JMP                                                      ->1
          9    >   FE_FREE                                                  $1
   10    10      > RETURN                                                   1

Generated using Vulcan Logic Dumper, using php 8.0.0


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