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<?php $k = (string)"0"; $a = array( 'name' => 'a', $k => 'null' ); $b = array( 'name' => 'b', $k => 'zero' ); $c = array( 'name' => 'c' ); $c[$k] = 'zeronull'; var_dump($a); var_dump($b); var_dump(array_merge($a, $b)); var_dump(array_merge($a, $c)); var_dump(array_merge($a, $b, $c)); var_dump($a + $b);
Finding entry points
Branch analysis from position: 0
1 jumps found. (Code = 62) Position 1 = -2
filename:       /in/vHg1h
function name:  (null)
number of ops:  44
compiled vars:  !0 = $k, !1 = $a, !2 = $b, !3 = $c
line      #* E I O op                           fetch          ext  return  operands
-------------------------------------------------------------------------------------
    2     0  E >   CAST                                          6  ~4      '0'
          1        ASSIGN                                                   !0, ~4
    3     2        INIT_ARRAY                                       ~6      'a', 'name'
          3        ADD_ARRAY_ELEMENT                                ~6      'null', !0
          4        ASSIGN                                                   !1, ~6
    4     5        INIT_ARRAY                                       ~8      'b', 'name'
          6        ADD_ARRAY_ELEMENT                                ~8      'zero', !0
          7        ASSIGN                                                   !2, ~8
    5     8        ASSIGN                                                   !3, <array>
    6     9        ASSIGN_DIM                                               !3, !0
         10        OP_DATA                                                  'zeronull'
    9    11        INIT_FCALL                                               'var_dump'
         12        SEND_VAR                                                 !1
         13        DO_ICALL                                                 
   10    14        INIT_FCALL                                               'var_dump'
         15        SEND_VAR                                                 !2
         16        DO_ICALL                                                 
   11    17        INIT_FCALL                                               'var_dump'
         18        INIT_FCALL                                               'array_merge'
         19        SEND_VAR                                                 !1
         20        SEND_VAR                                                 !2
         21        DO_ICALL                                         $14     
         22        SEND_VAR                                                 $14
         23        DO_ICALL                                                 
   12    24        INIT_FCALL                                               'var_dump'
         25        INIT_FCALL                                               'array_merge'
         26        SEND_VAR                                                 !1
         27        SEND_VAR                                                 !3
         28        DO_ICALL                                         $16     
         29        SEND_VAR                                                 $16
         30        DO_ICALL                                                 
   13    31        INIT_FCALL                                               'var_dump'
         32        INIT_FCALL                                               'array_merge'
         33        SEND_VAR                                                 !1
         34        SEND_VAR                                                 !2
         35        SEND_VAR                                                 !3
         36        DO_ICALL                                         $18     
         37        SEND_VAR                                                 $18
         38        DO_ICALL                                                 
   14    39        INIT_FCALL                                               'var_dump'
         40        ADD                                              ~20     !1, !2
         41        SEND_VAL                                                 ~20
         42        DO_ICALL                                                 
         43      > RETURN                                                   1

Generated using Vulcan Logic Dumper, using php 8.0.0


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