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<?php $a = isset($b) ? $b : -1; $a = $b ?? -1; echo $a;
Finding entry points
Branch analysis from position: 0
2 jumps found. (Code = 43) Position 1 = 2, Position 2 = 4
Branch analysis from position: 2
1 jumps found. (Code = 42) Position 1 = 5
Branch analysis from position: 5
1 jumps found. (Code = 62) Position 1 = -2
Branch analysis from position: 4
1 jumps found. (Code = 62) Position 1 = -2
filename:       /in/eUAoJ
function name:  (null)
number of ops:  11
compiled vars:  !0 = $a, !1 = $b
line      #* E I O op                           fetch          ext  return  operands
-------------------------------------------------------------------------------------
    2     0  E >   ISSET_ISEMPTY_CV                                         !1
          1      > JMPZ                                                     ~2, ->4
          2    >   QM_ASSIGN                                        ~3      !1
          3      > JMP                                                      ->5
          4    >   QM_ASSIGN                                        ~3      -1
          5    >   ASSIGN                                                   !0, ~3
    3     6        COALESCE                                         ~5      !1
          7        QM_ASSIGN                                        ~5      -1
          8        ASSIGN                                                   !0, ~5
    5     9        ECHO                                                     !0
         10      > RETURN                                                   1

Generated using Vulcan Logic Dumper, using php 8.0.0


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