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<?php $class = new \stdClass(); $class->name = 'Test'; var_dump($class); $names = array_column([$class], 'name'); var_dump($names);
Finding entry points
Branch analysis from position: 0
1 jumps found. (Code = 62) Position 1 = -2
filename:       /in/Nsjvl
function name:  (null)
number of ops:  18
compiled vars:  !0 = $class, !1 = $names
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, 'name'
          4        OP_DATA                                                      'Test'
    5     5        INIT_FCALL                                                   'var_dump'
          6        SEND_VAR                                                     !0
          7        DO_ICALL                                                     
    7     8        INIT_FCALL                                                   'array_column'
          9        INIT_ARRAY                                           ~7      !0
         10        SEND_VAL                                                     ~7
         11        SEND_VAL                                                     'name'
         12        DO_ICALL                                             $8      
         13        ASSIGN                                                       !1, $8
    8    14        INIT_FCALL                                                   'var_dump'
         15        SEND_VAR                                                     !1
         16        DO_ICALL                                                     
         17      > RETURN                                                       1

Generated using Vulcan Logic Dumper, using php 8.5.0


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