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<?php $di = (new DateTime('2012-10-20'))->diff(new DateTime('2012-12-10')); print_r($di); print_r((new DateTime('2015-09-30'))->add($di)); $di2 = (new DateTime('2015-09-30'))->diff(new DateTime(date('r', $_SERVER['REQUEST_TIME']))); print_r($di2);
Finding entry points
Branch analysis from position: 0
1 jumps found. (Code = 62) Position 1 = -2
filename:       /in/J3AbP
function name:  (null)
number of ops:  42
compiled vars:  !0 = $di, !1 = $di2
line      #* E I O op                           fetch          ext  return  operands
-------------------------------------------------------------------------------------
    3     0  E >   NEW                                              $2      'DateTime'
          1        SEND_VAL_EX                                              '2012-10-20'
          2        DO_FCALL                                      0          
          3        INIT_METHOD_CALL                                         $2, 'diff'
          4        NEW                                              $4      'DateTime'
          5        SEND_VAL_EX                                              '2012-12-10'
          6        DO_FCALL                                      0          
          7        SEND_VAR_NO_REF_EX                                       $4
          8        DO_FCALL                                      0  $6      
          9        ASSIGN                                                   !0, $6
    5    10        INIT_FCALL                                               'print_r'
         11        SEND_VAR                                                 !0
         12        DO_ICALL                                                 
    7    13        INIT_FCALL                                               'print_r'
         14        NEW                                              $9      'DateTime'
         15        SEND_VAL_EX                                              '2015-09-30'
         16        DO_FCALL                                      0          
         17        INIT_METHOD_CALL                                         $9, 'add'
         18        SEND_VAR_EX                                              !0
         19        DO_FCALL                                      0  $11     
         20        SEND_VAR                                                 $11
         21        DO_ICALL                                                 
    9    22        NEW                                              $13     'DateTime'
         23        SEND_VAL_EX                                              '2015-09-30'
         24        DO_FCALL                                      0          
         25        INIT_METHOD_CALL                                         $13, 'diff'
         26        NEW                                              $15     'DateTime'
         27        INIT_FCALL                                               'date'
         28        SEND_VAL                                                 'r'
         29        FETCH_R                      global              ~16     '_SERVER'
         30        FETCH_DIM_R                                      ~17     ~16, 'REQUEST_TIME'
         31        SEND_VAL                                                 ~17
         32        DO_ICALL                                         $18     
         33        SEND_VAR_NO_REF_EX                                       $18
         34        DO_FCALL                                      0          
         35        SEND_VAR_NO_REF_EX                                       $15
         36        DO_FCALL                                      0  $20     
         37        ASSIGN                                                   !1, $20
   11    38        INIT_FCALL                                               'print_r'
         39        SEND_VAR                                                 !1
         40        DO_ICALL                                                 
         41      > RETURN                                                   1

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