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

Generated using Vulcan Logic Dumper, using php 8.0.0


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