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<?php $array = array(); $array['foo'] = 'bar'; $array['foo']['bar'] = 'baz'; print_r($array); $array['foo']['bar'] = 2; $array['foo'] = 1; print_r($array);
Finding entry points
Branch analysis from position: 0
1 jumps found. (Code = 62) Position 1 = -2
filename:       /in/8R0oX
function name:  (null)
number of ops:  18
compiled vars:  !0 = $array
line      #* E I O op                           fetch          ext  return  operands
-------------------------------------------------------------------------------------
    2     0  E >   ASSIGN                                                   !0, <array>
    4     1        ASSIGN_DIM                                               !0, 'foo'
          2        OP_DATA                                                  'bar'
    5     3        FETCH_DIM_W                                      $3      !0, 'foo'
          4        ASSIGN_DIM                                               $3, 'bar'
          5        OP_DATA                                                  'baz'
    7     6        INIT_FCALL                                               'print_r'
          7        SEND_VAR                                                 !0
          8        DO_ICALL                                                 
    9     9        FETCH_DIM_W                                      $6      !0, 'foo'
         10        ASSIGN_DIM                                               $6, 'bar'
         11        OP_DATA                                                  2
   10    12        ASSIGN_DIM                                               !0, 'foo'
         13        OP_DATA                                                  1
   12    14        INIT_FCALL                                               'print_r'
         15        SEND_VAR                                                 !0
         16        DO_ICALL                                                 
         17      > RETURN                                                   1

Generated using Vulcan Logic Dumper, using php 8.0.0


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