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<?php $object = new stdClass(); $object->{'1'} = 'one'; $array = (array) $object; var_dump($array); var_dump(key($array));
Finding entry points
Branch analysis from position: 0
1 jumps found. (Code = 62) Position 1 = -2
filename:       /in/f0DvJ
function name:  (null)
number of ops:  17
compiled vars:  !0 = $object, !1 = $array
line      #* E I O op                           fetch          ext  return  operands
-------------------------------------------------------------------------------------
    3     0  E >   NEW                                              $2      'stdClass'
          1        DO_FCALL                                      0          
          2        ASSIGN                                                   !0, $2
    4     3        ASSIGN_OBJ                                               !0, '1'
          4        OP_DATA                                                  'one'
    6     5        CAST                                          7  ~6      !0
          6        ASSIGN                                                   !1, ~6
    8     7        INIT_FCALL                                               'var_dump'
          8        SEND_VAR                                                 !1
          9        DO_ICALL                                                 
   10    10        INIT_FCALL                                               'var_dump'
         11        INIT_FCALL                                               'key'
         12        SEND_VAR                                                 !1
         13        DO_ICALL                                         $9      
         14        SEND_VAR                                                 $9
         15        DO_ICALL                                                 
         16      > RETURN                                                   1

Generated using Vulcan Logic Dumper, using php 8.0.0


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