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<?php $exists = isset($a); if($exists) echo "SI"; else var_dump("NO");
Finding entry points
Branch analysis from position: 0
2 jumps found. (Code = 43) Position 1 = 3, Position 2 = 5
Branch analysis from position: 3
1 jumps found. (Code = 42) Position 1 = 8
Branch analysis from position: 8
1 jumps found. (Code = 62) Position 1 = -2
Branch analysis from position: 5
1 jumps found. (Code = 62) Position 1 = -2
filename:       /in/e8fJJ
function name:  (null)
number of ops:  9
compiled vars:  !0 = $exists, !1 = $a
line      #* E I O op                           fetch          ext  return  operands
-------------------------------------------------------------------------------------
    2     0  E >   ISSET_ISEMPTY_CV                                 ~2      !1
          1        ASSIGN                                                   !0, ~2
    3     2      > JMPZ                                                     !0, ->5
          3    >   ECHO                                                     'SI'
          4      > JMP                                                      ->8
          5    >   INIT_FCALL                                               'var_dump'
          6        SEND_VAL                                                 'NO'
          7        DO_ICALL                                                 
          8    > > RETURN                                                   1

Generated using Vulcan Logic Dumper, using php 8.0.0


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