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<?php $patterns = [ ['2016-01-01', '2016-02-01'], ['2016-02-01', '2016-03-01'], ['2016-03-01', '2016-04-01'], ['2016-02-01', '2016-02-28'], ['2016-03-01', '2016-03-31'], ['2016-04-01', '2016-04-30'], ]; $timezones = ['UTC', 'Asia/Tokyo']; foreach ($timezones as $timezone) { foreach ($patterns as $pattern) { $d1 = new DateTime($pattern[0], new DateTimeZone($timezone)); $d2 = new DateTime($pattern[1], new DateTimeZone($timezone)); $diff = $d1->diff($d2); printf( "There are %d months %2d days between %s and %s (%s)\n", $diff->m, $diff->d, $pattern[0], $pattern[1], $timezone ); } echo "\n"; }
Finding entry points
Branch analysis from position: 0
2 jumps found. (Code = 77) Position 1 = 3, Position 2 = 46
Branch analysis from position: 3
2 jumps found. (Code = 78) Position 1 = 4, Position 2 = 46
Branch analysis from position: 4
2 jumps found. (Code = 77) Position 1 = 5, Position 2 = 43
Branch analysis from position: 5
2 jumps found. (Code = 78) Position 1 = 6, Position 2 = 43
Branch analysis from position: 6
1 jumps found. (Code = 42) Position 1 = 5
Branch analysis from position: 5
Branch analysis from position: 43
1 jumps found. (Code = 42) Position 1 = 3
Branch analysis from position: 3
Branch analysis from position: 43
Branch analysis from position: 46
1 jumps found. (Code = 62) Position 1 = -2
Branch analysis from position: 46
filename:       /in/rH2BC
function name:  (null)
number of ops:  48
compiled vars:  !0 = $patterns, !1 = $timezones, !2 = $timezone, !3 = $pattern, !4 = $d1, !5 = $d2, !6 = $diff
line      #* E I O op                           fetch          ext  return  operands
-------------------------------------------------------------------------------------
    3     0  E >   ASSIGN                                                   !0, <array>
   12     1        ASSIGN                                                   !1, <array>
   14     2      > FE_RESET_R                                       $9      !1, ->46
          3    > > FE_FETCH_R                                               $9, !2, ->46
   15     4    > > FE_RESET_R                                       $10     !0, ->43
          5    > > FE_FETCH_R                                               $10, !3, ->43
   16     6    >   NEW                                              $11     'DateTime'
          7        CHECK_FUNC_ARG                                           
          8        FETCH_DIM_FUNC_ARG                               $12     !3, 0
          9        SEND_FUNC_ARG                                            $12
         10        NEW                                              $13     'DateTimeZone'
         11        SEND_VAR_EX                                              !2
         12        DO_FCALL                                      0          
         13        SEND_VAR_NO_REF_EX                                       $13
         14        DO_FCALL                                      0          
         15        ASSIGN                                                   !4, $11
   17    16        NEW                                              $17     'DateTime'
         17        CHECK_FUNC_ARG                                           
         18        FETCH_DIM_FUNC_ARG                               $18     !3, 1
         19        SEND_FUNC_ARG                                            $18
         20        NEW                                              $19     'DateTimeZone'
         21        SEND_VAR_EX                                              !2
         22        DO_FCALL                                      0          
         23        SEND_VAR_NO_REF_EX                                       $19
         24        DO_FCALL                                      0          
         25        ASSIGN                                                   !5, $17
   18    26        INIT_METHOD_CALL                                         !4, 'diff'
         27        SEND_VAR_EX                                              !5
         28        DO_FCALL                                      0  $23     
         29        ASSIGN                                                   !6, $23
   19    30        INIT_FCALL                                               'printf'
   20    31        SEND_VAL                                                 'There+are+%25d+months+%252d+days+between+%25s+and+%25s+%28%25s%29%0A'
   21    32        FETCH_OBJ_R                                      ~25     !6, 'm'
         33        SEND_VAL                                                 ~25
   22    34        FETCH_OBJ_R                                      ~26     !6, 'd'
         35        SEND_VAL                                                 ~26
   23    36        FETCH_DIM_R                                      ~27     !3, 0
         37        SEND_VAL                                                 ~27
   24    38        FETCH_DIM_R                                      ~28     !3, 1
         39        SEND_VAL                                                 ~28
   25    40        SEND_VAR                                                 !2
         41        DO_ICALL                                                 
   15    42      > JMP                                                      ->5
         43    >   FE_FREE                                                  $10
   28    44        ECHO                                                     '%0A'
   14    45      > JMP                                                      ->3
         46    >   FE_FREE                                                  $9
   29    47      > RETURN                                                   1

Generated using Vulcan Logic Dumper, using php 8.0.0


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