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<?php class foo { public $field1; public $field2; public $field3; } $foo = new foo(); $foo->field1 = 2; var_dump($foo); $field1 = 'field1'; var_dump(isset($foo->$field1, $foo->field2, $foo->field3));
Finding entry points
Branch analysis from position: 0
2 jumps found. (Code = 46) Position 1 = 12, Position 2 = 14
Branch analysis from position: 12
2 jumps found. (Code = 46) Position 1 = 15, Position 2 = 17
Branch analysis from position: 15
1 jumps found. (Code = 62) Position 1 = -2
Branch analysis from position: 17
Branch analysis from position: 14
filename:       /in/pXaK1
function name:  (null)
number of ops:  20
compiled vars:  !0 = $foo, !1 = $field1
line      #* E I O op                           fetch          ext  return  operands
-------------------------------------------------------------------------------------
    9     0  E >   NEW                                              $2      'foo'
          1        DO_FCALL                                      0          
          2        ASSIGN                                                   !0, $2
   10     3        ASSIGN_OBJ                                               !0, 'field1'
          4        OP_DATA                                                  2
   11     5        INIT_FCALL                                               'var_dump'
          6        SEND_VAR                                                 !0
          7        DO_ICALL                                                 
   12     8        ASSIGN                                                   !1, 'field1'
   13     9        INIT_FCALL                                               'var_dump'
         10        ISSET_ISEMPTY_PROP_OBJ                           ~8      !0, !1
         11      > JMPZ_EX                                          ~8      ~8, ->14
         12    >   ISSET_ISEMPTY_PROP_OBJ                           ~9      !0, 'field2'
         13        BOOL                                             ~8      ~9
         14    > > JMPZ_EX                                          ~8      ~8, ->17
         15    >   ISSET_ISEMPTY_PROP_OBJ                           ~10     !0, 'field3'
         16        BOOL                                             ~8      ~10
         17    >   SEND_VAL                                                 ~8
         18        DO_ICALL                                                 
         19      > RETURN                                                   1

Class foo: [no user functions]

Generated using Vulcan Logic Dumper, using php 8.0.0


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