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<?php $a = NULL; $c = 1; $d = $a ?? $b ?? $c; var_dump($d);
Finding entry points
Branch analysis from position: 0
1 jumps found. (Code = 62) Position 1 = -2
filename:       /in/qhAfs
function name:  (null)
number of ops:  11
compiled vars:  !0 = $a, !1 = $c, !2 = $d, !3 = $b
line      #* E I O op                           fetch          ext  return  operands
-------------------------------------------------------------------------------------
    2     0  E >   ASSIGN                                                   !0, null
    3     1        ASSIGN                                                   !1, 1
    4     2        COALESCE                                         ~6      !0
          3        COALESCE                                         ~7      !3
          4        QM_ASSIGN                                        ~7      !1
          5        QM_ASSIGN                                        ~6      ~7
          6        ASSIGN                                                   !2, ~6
    5     7        INIT_FCALL                                               'var_dump'
          8        SEND_VAR                                                 !2
          9        DO_ICALL                                                 
         10      > RETURN                                                   1

Generated using Vulcan Logic Dumper, using php 8.0.0


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