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<?php $var = null; $isset = isset($var); $isnull = isnull($var); var_dump($isset); var_dump($isnull);
Finding entry points
Branch analysis from position: 0
1 jumps found. (Code = 62) Position 1 = -2
filename:       /in/67Bjf
function name:  (null)
number of ops:  14
compiled vars:  !0 = $var, !1 = $isset, !2 = $isnull
line      #* E I O op                           fetch          ext  return  operands
-------------------------------------------------------------------------------------
    2     0  E >   ASSIGN                                                   !0, null
    3     1        ISSET_ISEMPTY_CV                                 ~4      !0
          2        ASSIGN                                                   !1, ~4
    4     3        INIT_FCALL_BY_NAME                                       'isnull'
          4        SEND_VAR_EX                                              !0
          5        DO_FCALL                                      0  $6      
          6        ASSIGN                                                   !2, $6
    6     7        INIT_FCALL                                               'var_dump'
          8        SEND_VAR                                                 !1
          9        DO_ICALL                                                 
    7    10        INIT_FCALL                                               'var_dump'
         11        SEND_VAR                                                 !2
         12        DO_ICALL                                                 
         13      > RETURN                                                   1

Generated using Vulcan Logic Dumper, using php 8.0.0


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