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<?php // Define two intervals $date1 = date_create("2013-03-15"); $date2 = date_create("2013-12-12"); $diff_1 = date_diff($date1,$date2); $date3 = date_create("2015-02-15"); $date4 = date_create("2015-12-12"); $diff_2 = date_diff($date3,$date4); // Create a datetime object and clone it $result = new DateTime(); $diff_res = clone $result; // Add the two intervals from before to the first one $result->add($diff_2); $result->add($diff_1); // The result of the two intervals is now the difference between the datetimeobject and its clone var_dump($result->diff($diff_res));
Finding entry points
Branch analysis from position: 0
1 jumps found. (Code = 62) Position 1 = -2
filename:       /in/ieiBb
function name:  (null)
number of ops:  44
compiled vars:  !0 = $date1, !1 = $date2, !2 = $diff_1, !3 = $date3, !4 = $date4, !5 = $diff_2, !6 = $result, !7 = $diff_res
line      #* E I O op                               fetch          ext  return  operands
-----------------------------------------------------------------------------------------
    4     0  E >   INIT_FCALL                                                   'date_create'
          1        SEND_VAL                                                     '2013-03-15'
          2        DO_ICALL                                             $8      
          3        ASSIGN                                                       !0, $8
    5     4        INIT_FCALL                                                   'date_create'
          5        SEND_VAL                                                     '2013-12-12'
          6        DO_ICALL                                             $10     
          7        ASSIGN                                                       !1, $10
    6     8        INIT_FCALL                                                   'date_diff'
          9        SEND_VAR                                                     !0
         10        SEND_VAR                                                     !1
         11        DO_ICALL                                             $12     
         12        ASSIGN                                                       !2, $12
    8    13        INIT_FCALL                                                   'date_create'
         14        SEND_VAL                                                     '2015-02-15'
         15        DO_ICALL                                             $14     
         16        ASSIGN                                                       !3, $14
    9    17        INIT_FCALL                                                   'date_create'
         18        SEND_VAL                                                     '2015-12-12'
         19        DO_ICALL                                             $16     
         20        ASSIGN                                                       !4, $16
   10    21        INIT_FCALL                                                   'date_diff'
         22        SEND_VAR                                                     !3
         23        SEND_VAR                                                     !4
         24        DO_ICALL                                             $18     
         25        ASSIGN                                                       !5, $18
   14    26        NEW                                                  $20     'DateTime'
         27        DO_FCALL                                          0          
         28        ASSIGN                                                       !6, $20
   15    29        CLONE                                                ~23     !6
         30        ASSIGN                                                       !7, ~23
   18    31        INIT_METHOD_CALL                                             !6, 'add'
         32        SEND_VAR_EX                                                  !5
         33        DO_FCALL                                          0          
   19    34        INIT_METHOD_CALL                                             !6, 'add'
         35        SEND_VAR_EX                                                  !2
         36        DO_FCALL                                          0          
   22    37        INIT_FCALL                                                   'var_dump'
         38        INIT_METHOD_CALL                                             !6, 'diff'
         39        SEND_VAR_EX                                                  !7
         40        DO_FCALL                                          0  $27     
         41        SEND_VAR                                                     $27
         42        DO_ICALL                                                     
         43      > RETURN                                                       1

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