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<?php $test = ['some' => null]; $test['some'] ??= 'default value'; echo $test['some'];
Finding entry points
Branch analysis from position: 0
1 jumps found. (Code = 62) Position 1 = -2
filename:       /in/Zl8YB
function name:  (null)
number of ops:  10
compiled vars:  !0 = $test
line      #* E I O op                           fetch          ext  return  operands
-------------------------------------------------------------------------------------
    3     0  E >   ASSIGN                                                   !0, <array>
    5     1        FETCH_DIM_IS                                     ~2      !0, 'some'
          2        COALESCE                                         ~3      ~2
          3        ASSIGN_DIM                                       ~4      !0, 'some'
          4        OP_DATA                                                  'default+value'
          5        QM_ASSIGN                                        ~3      ~4
          6        FREE                                                     ~3
    7     7        FETCH_DIM_R                                      ~5      !0, 'some'
          8        ECHO                                                     ~5
          9      > RETURN                                                   1

Generated using Vulcan Logic Dumper, using php 8.0.0


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