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<?php class C { public int $value; } $c = new C(); var_dump(isset($c->value)); // false $c->value = 5; var_dump($c->value); //5 unset($c->value); //var_dump($c->value); //Error: Typed property C::$value must not be accessed before initialization var_dump(isset($c->value)); // false $c->value = 5; $c->value = null; //error
Finding entry points
Branch analysis from position: 0
1 jumps found. (Code = 62) Position 1 = -2
filename:       /in/VUVD1
function name:  (null)
number of ops:  23
compiled vars:  !0 = $c
line      #* E I O op                               fetch          ext  return  operands
-----------------------------------------------------------------------------------------
    7     0  E >   NEW                                                  $1      'C'
          1        DO_FCALL                                          0          
          2        ASSIGN                                                       !0, $1
    8     3        INIT_FCALL                                                   'var_dump'
          4        ISSET_ISEMPTY_PROP_OBJ                               ~4      !0, 'value'
          5        SEND_VAL                                                     ~4
          6        DO_ICALL                                                     
    9     7        ASSIGN_OBJ                                                   !0, 'value'
          8        OP_DATA                                                      5
   10     9        INIT_FCALL                                                   'var_dump'
         10        FETCH_OBJ_R                                          ~7      !0, 'value'
         11        SEND_VAL                                                     ~7
         12        DO_ICALL                                                     
   11    13        UNSET_OBJ                                                    !0, 'value'
   13    14        INIT_FCALL                                                   'var_dump'
         15        ISSET_ISEMPTY_PROP_OBJ                               ~9      !0, 'value'
         16        SEND_VAL                                                     ~9
         17        DO_ICALL                                                     
   14    18        ASSIGN_OBJ                                                   !0, 'value'
         19        OP_DATA                                                      5
   15    20        ASSIGN_OBJ                                                   !0, 'value'
         21        OP_DATA                                                      null
         22      > RETURN                                                       1

Class C: [no user functions]

Generated using Vulcan Logic Dumper, using php 8.5.0


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