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<?php $a = array(); $b = null; $a[$b] = 'a'; $a[$b] = 'b'; var_dump($a);
Finding entry points
Branch analysis from position: 0
1 jumps found. (Code = 62) Position 1 = -2
filename:       /in/N547q
function name:  (null)
number of ops:  10
compiled vars:  !0 = $a, !1 = $b
line      #* E I O op                           fetch          ext  return  operands
-------------------------------------------------------------------------------------
    3     0  E >   ASSIGN                                                   !0, <array>
    5     1        ASSIGN                                                   !1, null
    7     2        ASSIGN_DIM                                               !0, !1
          3        OP_DATA                                                  'a'
    8     4        ASSIGN_DIM                                               !0, !1
          5        OP_DATA                                                  'b'
   10     6        INIT_FCALL                                               'var_dump'
          7        SEND_VAR                                                 !0
          8        DO_ICALL                                                 
          9      > RETURN                                                   1

Generated using Vulcan Logic Dumper, using php 8.0.0


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