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<?php function test($b){ if(empty($b)){ var_dump($b); } } test(); test(null);
Finding entry points
Branch analysis from position: 0
1 jumps found. (Code = 62) Position 1 = -2
filename:       /in/hAD64
function name:  (null)
number of ops:  6
compiled vars:  none
line      #* E I O op                           fetch          ext  return  operands
-------------------------------------------------------------------------------------
    9     0  E >   INIT_FCALL                                               'test'
          1        DO_FCALL                                      0          
   10     2        INIT_FCALL                                               'test'
          3        SEND_VAL                                                 null
          4        DO_FCALL                                      0          
          5      > RETURN                                                   1

Function test:
Finding entry points
Branch analysis from position: 0
2 jumps found. (Code = 43) Position 1 = 3, Position 2 = 6
Branch analysis from position: 3
1 jumps found. (Code = 62) Position 1 = -2
Branch analysis from position: 6
filename:       /in/hAD64
function name:  test
number of ops:  7
compiled vars:  !0 = $b
line      #* E I O op                           fetch          ext  return  operands
-------------------------------------------------------------------------------------
    3     0  E >   RECV                                             !0      
    4     1        ISSET_ISEMPTY_CV                                         !0
          2      > JMPZ                                                     ~1, ->6
    5     3    >   INIT_FCALL                                               'var_dump'
          4        SEND_VAR                                                 !0
          5        DO_ICALL                                                 
    7     6    > > RETURN                                                   null

End of function test

Generated using Vulcan Logic Dumper, using php 8.0.0


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