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<?php $result = json_encode(['end' => json_decode(null, true)]); var_dump($result); class A implements \JsonSerializable { function jsonSerialize() { return ['end' => json_decode(null, true)]; } } $a = new A(); $toJsonData = $a->jsonSerialize(); $result = json_encode($a); var_dump($result); $result = json_encode($toJsonData); var_dump($result);
Finding entry points
Branch analysis from position: 0
1 jumps found. (Code = 62) Position 1 = -2
filename:       /in/UraSC
function name:  (null)
number of ops:  34
compiled vars:  !0 = $result, !1 = $a, !2 = $toJsonData
line      #* E I O op                               fetch          ext  return  operands
-----------------------------------------------------------------------------------------
    3     0  E >   INIT_FCALL                                                   'json_encode'
          1        INIT_FCALL                                                   'json_decode'
          2        SEND_VAL                                                     null
          3        SEND_VAL                                                     <true>
          4        DO_ICALL                                             $3      
          5        INIT_ARRAY                                           ~4      $3, 'end'
          6        SEND_VAL                                                     ~4
          7        DO_ICALL                                             $5      
          8        ASSIGN                                                       !0, $5
    4     9        INIT_FCALL                                                   'var_dump'
         10        SEND_VAR                                                     !0
         11        DO_ICALL                                                     
    6    12        DECLARE_CLASS                                                'a'
   13    13        NEW                                                  $8      'A'
         14        DO_FCALL                                          0          
         15        ASSIGN                                                       !1, $8
   14    16        INIT_METHOD_CALL                                             !1, 'jsonSerialize'
         17        DO_FCALL                                          0  $11     
         18        ASSIGN                                                       !2, $11
   15    19        INIT_FCALL                                                   'json_encode'
         20        SEND_VAR                                                     !1
         21        DO_ICALL                                             $13     
         22        ASSIGN                                                       !0, $13
   16    23        INIT_FCALL                                                   'var_dump'
         24        SEND_VAR                                                     !0
         25        DO_ICALL                                                     
   18    26        INIT_FCALL                                                   'json_encode'
         27        SEND_VAR                                                     !2
         28        DO_ICALL                                             $16     
         29        ASSIGN                                                       !0, $16
   19    30        INIT_FCALL                                                   'var_dump'
         31        SEND_VAR                                                     !0
         32        DO_ICALL                                                     
         33      > RETURN                                                       1

Class A:
Function jsonserialize:
Finding entry points
Branch analysis from position: 0
1 jumps found. (Code = 62) Position 1 = -2
filename:       /in/UraSC
function name:  jsonSerialize
number of ops:  7
compiled vars:  none
line      #* E I O op                               fetch          ext  return  operands
-----------------------------------------------------------------------------------------
   10     0  E >   INIT_FCALL                                                   'json_decode'
          1        SEND_VAL                                                     null
          2        SEND_VAL                                                     <true>
          3        DO_ICALL                                             $0      
          4        INIT_ARRAY                                           ~1      $0, 'end'
          5      > RETURN                                                       ~1
   11     6*     > RETURN                                                       null

End of function jsonserialize

End of class A.

Generated using Vulcan Logic Dumper, using php 8.5.0


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