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<?php $a = ['a' => null,'b' => null,'c' => null,]; $b = [b=>'x']; var_dump(array_merge($a, $b));
Finding entry points
Branch analysis from position: 0
1 jumps found. (Code = 62) Position 1 = -2
filename:       /in/XjNAE
function name:  (null)
number of ops:  12
compiled vars:  !0 = $a, !1 = $b
line      #* E I O op                           fetch          ext  return  operands
-------------------------------------------------------------------------------------
    3     0  E >   ASSIGN                                                   !0, <array>
    4     1        FETCH_CONSTANT                                   ~3      'b'
          2        INIT_ARRAY                                       ~4      'x', ~3
          3        ASSIGN                                                   !1, ~4
    5     4        INIT_FCALL                                               'var_dump'
          5        INIT_FCALL                                               'array_merge'
          6        SEND_VAR                                                 !0
          7        SEND_VAR                                                 !1
          8        DO_ICALL                                         $6      
          9        SEND_VAR                                                 $6
         10        DO_ICALL                                                 
         11      > RETURN                                                   1

Generated using Vulcan Logic Dumper, using php 8.0.0


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