3v4l.org

run code in 500+ PHP versions simultaneously
<?php class MyDTO{ public ?int $propA; public ?int $propB; } $dto = new MyDTO(); $dto->propA = null; echo (new ReflectionProperty(MyDTO::class, 'propB'))->isInitialized($dto) ? 'init' : 'no-init';
Finding entry points
Branch analysis from position: 0
2 jumps found. (Code = 43) Position 1 = 13, Position 2 = 15
Branch analysis from position: 13
1 jumps found. (Code = 42) Position 1 = 16
Branch analysis from position: 16
1 jumps found. (Code = 62) Position 1 = -2
Branch analysis from position: 15
1 jumps found. (Code = 62) Position 1 = -2
filename:       /in/p1nAHJ
function name:  (null)
number of ops:  18
compiled vars:  !0 = $dto
line      #* E I O op                               fetch          ext  return  operands
-----------------------------------------------------------------------------------------
    9     0  E >   NEW                                                  $1      'MyDTO'
          1        DO_FCALL                                          0          
          2        ASSIGN                                                       !0, $1
   10     3        ASSIGN_OBJ                                                   !0, 'propA'
          4        OP_DATA                                                      null
   12     5        NEW                                                  $5      'ReflectionProperty'
          6        SEND_VAL_EX                                                  'MyDTO'
          7        SEND_VAL_EX                                                  'propB'
          8        DO_FCALL                                          0          
          9        INIT_METHOD_CALL                                             $5, 'isInitialized'
         10        SEND_VAR_EX                                                  !0
         11        DO_FCALL                                          0  $7      
         12      > JMPZ                                                         $7, ->15
         13    >   QM_ASSIGN                                            ~8      'init'
         14      > JMP                                                          ->16
         15    >   QM_ASSIGN                                            ~8      'no-init'
         16    >   ECHO                                                         ~8
         17      > RETURN                                                       1

Class MyDTO: [no user functions]

Generated using Vulcan Logic Dumper, using php 8.5.0


preferences:
160.52 ms | 1580 KiB | 13 Q