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<?php $now = new DateTime('now', new \DateTimeZone('UTC')); // true, всё верно, сдвиг одинаковый var_dump((new DateTimeZone('Africa/Cairo'))->getOffset($now) === (new DateTimeZone('Europe/Paris'))->getOffset($now)); $d1 = new DateTimeImmutable('2020-01-01 15:00', new DateTimeZone('Europe/Paris')); $d2 = new DateTimeImmutable('2020-01-01 15:00', new DateTimeZone('Africa/Cairo')); // вот тут проблема, unix должен быть одинаковый var_dump($d1->getTimestamp() === $d2->getTimestamp() + 3600);
Finding entry points
Branch analysis from position: 0
1 jumps found. (Code = 62) Position 1 = -2
filename:       /in/QBsG7
function name:  (null)
number of ops:  50
compiled vars:  !0 = $now, !1 = $d1, !2 = $d2
line      #* E I O op                               fetch          ext  return  operands
-----------------------------------------------------------------------------------------
    3     0  E >   NEW                                                  $3      'DateTime'
          1        SEND_VAL_EX                                                  'now'
          2        NEW                                                  $4      'DateTimeZone'
          3        SEND_VAL_EX                                                  'UTC'
          4        DO_FCALL                                          0          
          5        SEND_VAR_NO_REF_EX                                           $4
          6        DO_FCALL                                          0          
          7        ASSIGN                                                       !0, $3
    5     8        INIT_FCALL                                                   'var_dump'
          9        NEW                                                  $8      'DateTimeZone'
         10        SEND_VAL_EX                                                  'Africa%2FCairo'
         11        DO_FCALL                                          0          
         12        INIT_METHOD_CALL                                             $8, 'getOffset'
         13        SEND_VAR_EX                                                  !0
         14        DO_FCALL                                          0  $10     
         15        NEW                                                  $11     'DateTimeZone'
         16        SEND_VAL_EX                                                  'Europe%2FParis'
         17        DO_FCALL                                          0          
         18        INIT_METHOD_CALL                                             $11, 'getOffset'
         19        SEND_VAR_EX                                                  !0
         20        DO_FCALL                                          0  $13     
         21        IS_IDENTICAL                                         ~14     $10, $13
         22        SEND_VAL                                                     ~14
         23        DO_ICALL                                                     
    7    24        NEW                                                  $16     'DateTimeImmutable'
         25        SEND_VAL_EX                                                  '2020-01-01+15%3A00'
         26        NEW                                                  $17     'DateTimeZone'
         27        SEND_VAL_EX                                                  'Europe%2FParis'
         28        DO_FCALL                                          0          
         29        SEND_VAR_NO_REF_EX                                           $17
         30        DO_FCALL                                          0          
         31        ASSIGN                                                       !1, $16
    8    32        NEW                                                  $21     'DateTimeImmutable'
         33        SEND_VAL_EX                                                  '2020-01-01+15%3A00'
         34        NEW                                                  $22     'DateTimeZone'
         35        SEND_VAL_EX                                                  'Africa%2FCairo'
         36        DO_FCALL                                          0          
         37        SEND_VAR_NO_REF_EX                                           $22
         38        DO_FCALL                                          0          
         39        ASSIGN                                                       !2, $21
   10    40        INIT_FCALL                                                   'var_dump'
         41        INIT_METHOD_CALL                                             !1, 'getTimestamp'
         42        DO_FCALL                                          0  $26     
         43        INIT_METHOD_CALL                                             !2, 'getTimestamp'
         44        DO_FCALL                                          0  $27     
         45        ADD                                                  ~28     $27, 3600
         46        IS_IDENTICAL                                         ~29     $26, ~28
         47        SEND_VAL                                                     ~29
         48        DO_ICALL                                                     
         49      > RETURN                                                       1

Generated using Vulcan Logic Dumper, using php 8.5.0


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