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<?php $currentDate = new DateTime(); $targetDate = new DateTime('2015-03-05 11:11:11'); $interval = $currentDate->diff($targetDate); // var_dump($interval); // Uncomment and isset will give the expected response var_dump($interval->y); var_dump($interval->m); var_dump(isset($interval->y)); var_dump(isset($interval->m));
Finding entry points
Branch analysis from position: 0
1 jumps found. (Code = 62) Position 1 = -2
filename:       /in/D7bcM
function name:  (null)
number of ops:  28
compiled vars:  !0 = $currentDate, !1 = $targetDate, !2 = $interval
line      #* E I O op                           fetch          ext  return  operands
-------------------------------------------------------------------------------------
    3     0  E >   NEW                                              $3      'DateTime'
          1        DO_FCALL                                      0          
          2        ASSIGN                                                   !0, $3
    4     3        NEW                                              $6      'DateTime'
          4        SEND_VAL_EX                                              '2015-03-05+11%3A11%3A11'
          5        DO_FCALL                                      0          
          6        ASSIGN                                                   !1, $6
    5     7        INIT_METHOD_CALL                                         !0, 'diff'
          8        SEND_VAR_EX                                              !1
          9        DO_FCALL                                      0  $9      
         10        ASSIGN                                                   !2, $9
    7    11        INIT_FCALL                                               'var_dump'
         12        FETCH_OBJ_R                                      ~11     !2, 'y'
         13        SEND_VAL                                                 ~11
         14        DO_ICALL                                                 
    8    15        INIT_FCALL                                               'var_dump'
         16        FETCH_OBJ_R                                      ~13     !2, 'm'
         17        SEND_VAL                                                 ~13
         18        DO_ICALL                                                 
    9    19        INIT_FCALL                                               'var_dump'
         20        ISSET_ISEMPTY_PROP_OBJ                           ~15     !2, 'y'
         21        SEND_VAL                                                 ~15
         22        DO_ICALL                                                 
   10    23        INIT_FCALL                                               'var_dump'
         24        ISSET_ISEMPTY_PROP_OBJ                           ~17     !2, 'm'
         25        SEND_VAL                                                 ~17
         26        DO_ICALL                                                 
         27      > RETURN                                                   1

Generated using Vulcan Logic Dumper, using php 8.0.0


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