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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 8.5.0


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