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<?php $a = ['b' => 'monkey']; $b = $a['b'] ?? 'rabbit';
Finding entry points
Branch analysis from position: 0
1 jumps found. (Code = 62) Position 1 = -2
filename:       /in/WIJH1
function name:  (null)
number of ops:  6
compiled vars:  !0 = $a, !1 = $b
line      #* E I O op                           fetch          ext  return  operands
-------------------------------------------------------------------------------------
    3     0  E >   ASSIGN                                                   !0, <array>
    4     1        FETCH_DIM_IS                                     ~3      !0, 'b'
          2        COALESCE                                         ~4      ~3
          3        QM_ASSIGN                                        ~4      'rabbit'
          4        ASSIGN                                                   !1, ~4
          5      > RETURN                                                   1

Generated using Vulcan Logic Dumper, using php 8.0.0


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