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<?php class A { private $json = "{\"prop1\": 1}"; public function __toString() { return $this->json; } } $obj = new \stdClass; $obj->prop0 = new A; var_dump(json_encode($obj)); var_dump((string) $obj);
Finding entry points
Branch analysis from position: 0
1 jumps found. (Code = 62) Position 1 = -2
filename:       /in/keOiA
function name:  (null)
number of ops:  19
compiled vars:  !0 = $obj
line      #* E I O op                           fetch          ext  return  operands
-------------------------------------------------------------------------------------
    2     0  E >   DECLARE_CLASS                                            'a'
    8     1        NEW                                              $1      'stdClass'
          2        DO_FCALL                                      0          
          3        ASSIGN                                                   !0, $1
    9     4        NEW                                              $5      'A'
          5        DO_FCALL                                      0          
          6        ASSIGN_OBJ                                               !0, 'prop0'
          7        OP_DATA                                                  $5
   10     8        INIT_FCALL                                               'var_dump'
          9        INIT_FCALL                                               'json_encode'
         10        SEND_VAR                                                 !0
         11        DO_ICALL                                         $7      
         12        SEND_VAR                                                 $7
         13        DO_ICALL                                                 
   11    14        INIT_FCALL                                               'var_dump'
         15        CAST                                          6  ~9      !0
         16        SEND_VAL                                                 ~9
         17        DO_ICALL                                                 
         18      > RETURN                                                   1

Class A:
Function __tostring:
Finding entry points
Branch analysis from position: 0
1 jumps found. (Code = 62) Position 1 = -2
filename:       /in/keOiA
function name:  __toString
number of ops:  5
compiled vars:  none
line      #* E I O op                           fetch          ext  return  operands
-------------------------------------------------------------------------------------
    5     0  E >   FETCH_OBJ_R                                      ~0      'json'
          1        VERIFY_RETURN_TYPE                                       ~0
          2      > RETURN                                                   ~0
    6     3*       VERIFY_RETURN_TYPE                                       
          4*     > RETURN                                                   null

End of function __tostring

End of class A.

Generated using Vulcan Logic Dumper, using php 8.0.0


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