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<?php $di = (new DateTime())->diff(new DateTime('+ 3 days')); var_dump($di->days); var_dump($di->days += 1); var_dump($di->days);
Finding entry points
Branch analysis from position: 0
1 jumps found. (Code = 62) Position 1 = -2
filename:       /in/h8Cju
function name:  (null)
number of ops:  23
compiled vars:  !0 = $di
line      #* E I O op                           fetch          ext  return  operands
-------------------------------------------------------------------------------------
    3     0  E >   NEW                                              $1      'DateTime'
          1        DO_FCALL                                      0          
          2        INIT_METHOD_CALL                                         $1, 'diff'
          3        NEW                                              $3      'DateTime'
          4        SEND_VAL_EX                                              '%2B+3+days'
          5        DO_FCALL                                      0          
          6        SEND_VAR_NO_REF_EX                                       $3
          7        DO_FCALL                                      0  $5      
          8        ASSIGN                                                   !0, $5
    4     9        INIT_FCALL                                               'var_dump'
         10        FETCH_OBJ_R                                      ~7      !0, 'days'
         11        SEND_VAL                                                 ~7
         12        DO_ICALL                                                 
    5    13        INIT_FCALL                                               'var_dump'
         14        ASSIGN_OBJ_OP                                 1  ~9      !0, 'days'
         15        OP_DATA                                                  1
         16        SEND_VAL                                                 ~9
         17        DO_ICALL                                                 
    6    18        INIT_FCALL                                               'var_dump'
         19        FETCH_OBJ_R                                      ~11     !0, 'days'
         20        SEND_VAL                                                 ~11
         21        DO_ICALL                                                 
         22      > RETURN                                                   1

Generated using Vulcan Logic Dumper, using php 8.0.0


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