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<?php var_dump(isset($var)); $var = null; var_dump(isset($var)); $var = false; var_dump(isset($var));
Finding entry points
Branch analysis from position: 0
1 jumps found. (Code = 62) Position 1 = -2
filename:       /in/RD1nH
function name:  (null)
number of ops:  15
compiled vars:  !0 = $var
line      #* E I O op                           fetch          ext  return  operands
-------------------------------------------------------------------------------------
    3     0  E >   INIT_FCALL                                               'var_dump'
          1        ISSET_ISEMPTY_CV                                 ~1      !0
          2        SEND_VAL                                                 ~1
          3        DO_ICALL                                                 
    5     4        ASSIGN                                                   !0, null
    6     5        INIT_FCALL                                               'var_dump'
          6        ISSET_ISEMPTY_CV                                 ~4      !0
          7        SEND_VAL                                                 ~4
          8        DO_ICALL                                                 
    8     9        ASSIGN                                                   !0, <false>
    9    10        INIT_FCALL                                               'var_dump'
         11        ISSET_ISEMPTY_CV                                 ~7      !0
         12        SEND_VAL                                                 ~7
         13        DO_ICALL                                                 
         14      > RETURN                                                   1

Generated using Vulcan Logic Dumper, using php 8.0.0


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