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<?php $k = (string)"0"; $a = array( 'name' => 'a', $k => 'null' ); $b = array( 'name' => 'b', $k => 'zero' ); $c = array( $k => 'zeronull', 'name' => 'c' ); var_dump($a); var_dump($b); var_dump($c); var_dump(array_merge($a, $b)); var_dump(array_merge($a, $c)); var_dump(array_merge($a, $b, $c));
Finding entry points
Branch analysis from position: 0
1 jumps found. (Code = 62) Position 1 = -2
filename:       /in/hUGL7
function name:  (null)
number of ops:  43
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        INIT_ARRAY                                       ~10     'zeronull', !0
          9        ADD_ARRAY_ELEMENT                                ~10     'c', 'name'
         10        ASSIGN                                                   !3, ~10
    8    11        INIT_FCALL                                               'var_dump'
         12        SEND_VAR                                                 !1
         13        DO_ICALL                                                 
    9    14        INIT_FCALL                                               'var_dump'
         15        SEND_VAR                                                 !2
         16        DO_ICALL                                                 
   10    17        INIT_FCALL                                               'var_dump'
         18        SEND_VAR                                                 !3
         19        DO_ICALL                                                 
   11    20        INIT_FCALL                                               'var_dump'
         21        INIT_FCALL                                               'array_merge'
         22        SEND_VAR                                                 !1
         23        SEND_VAR                                                 !2
         24        DO_ICALL                                         $15     
         25        SEND_VAR                                                 $15
         26        DO_ICALL                                                 
   12    27        INIT_FCALL                                               'var_dump'
         28        INIT_FCALL                                               'array_merge'
         29        SEND_VAR                                                 !1
         30        SEND_VAR                                                 !3
         31        DO_ICALL                                         $17     
         32        SEND_VAR                                                 $17
         33        DO_ICALL                                                 
   13    34        INIT_FCALL                                               'var_dump'
         35        INIT_FCALL                                               'array_merge'
         36        SEND_VAR                                                 !1
         37        SEND_VAR                                                 !2
         38        SEND_VAR                                                 !3
         39        DO_ICALL                                         $19     
         40        SEND_VAR                                                 $19
         41        DO_ICALL                                                 
         42      > RETURN                                                   1

Generated using Vulcan Logic Dumper, using php 8.0.0


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