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<?php $firstDate = DateTimeImmutable::createFromFormat('Y-m-d H:i:s', '2021-03-03 15:45:49', new DateTimeZone('Europe/Amsterdam')); $secondDate = DateTimeImmutable::createFromFormat('Y-m-d H:i:s', '2021-03-03 16:45:49', new DateTimeZone('Europe/Moscow')); $secondsInHour = 3600; echo $firstDate->format('Y-m-d H:i:s. \I\s \D\S\T\: I.') . PHP_EOL; echo '+' . $firstDate->getTimezone()->getOffset($firstDate) / $secondsInHour . PHP_EOL; echo $secondDate->format('Y-m-d H:i:s. \I\s \D\S\T\: I.') . PHP_EOL; echo '+' . $secondDate->getTimezone()->getOffset($secondDate) / $secondsInHour . PHP_EOL;
Finding entry points
Branch analysis from position: 0
1 jumps found. (Code = 62) Position 1 = -2
filename:       /in/H4TTm
function name:  (null)
number of ops:  48
compiled vars:  !0 = $firstDate, !1 = $secondDate, !2 = $secondsInHour
line      #* E I O op                           fetch          ext  return  operands
-------------------------------------------------------------------------------------
    3     0  E >   INIT_STATIC_METHOD_CALL                                  'DateTimeImmutable', 'createFromFormat'
          1        SEND_VAL                                                 'Y-m-d+H%3Ai%3As'
          2        SEND_VAL                                                 '2021-03-03+15%3A45%3A49'
          3        NEW                                              $3      'DateTimeZone'
          4        SEND_VAL_EX                                              'Europe%2FAmsterdam'
          5        DO_FCALL                                      0          
          6        SEND_VAR                                                 $3
          7        DO_FCALL                                      0  $5      
          8        ASSIGN                                                   !0, $5
    4     9        INIT_STATIC_METHOD_CALL                                  'DateTimeImmutable', 'createFromFormat'
         10        SEND_VAL                                                 'Y-m-d+H%3Ai%3As'
         11        SEND_VAL                                                 '2021-03-03+16%3A45%3A49'
         12        NEW                                              $7      'DateTimeZone'
         13        SEND_VAL_EX                                              'Europe%2FMoscow'
         14        DO_FCALL                                      0          
         15        SEND_VAR                                                 $7
         16        DO_FCALL                                      0  $9      
         17        ASSIGN                                                   !1, $9
    5    18        ASSIGN                                                   !2, 3600
    7    19        INIT_METHOD_CALL                                         !0, 'format'
         20        SEND_VAL_EX                                              'Y-m-d+H%3Ai%3As.+%5CI%5Cs+%5CD%5CS%5CT%5C%3A+I.'
         21        DO_FCALL                                      0  $12     
         22        CONCAT                                           ~13     $12, '%0A'
         23        ECHO                                                     ~13
    8    24        INIT_METHOD_CALL                                         !0, 'getTimezone'
         25        DO_FCALL                                      0  $14     
         26        INIT_METHOD_CALL                                         $14, 'getOffset'
         27        SEND_VAR_EX                                              !0
         28        DO_FCALL                                      0  $15     
         29        DIV                                              ~16     $15, !2
         30        CONCAT                                           ~17     '%2B', ~16
         31        CONCAT                                           ~18     ~17, '%0A'
         32        ECHO                                                     ~18
   10    33        INIT_METHOD_CALL                                         !1, 'format'
         34        SEND_VAL_EX                                              'Y-m-d+H%3Ai%3As.+%5CI%5Cs+%5CD%5CS%5CT%5C%3A+I.'
         35        DO_FCALL                                      0  $19     
         36        CONCAT                                           ~20     $19, '%0A'
         37        ECHO                                                     ~20
   11    38        INIT_METHOD_CALL                                         !1, 'getTimezone'
         39        DO_FCALL                                      0  $21     
         40        INIT_METHOD_CALL                                         $21, 'getOffset'
         41        SEND_VAR_EX                                              !1
         42        DO_FCALL                                      0  $22     
         43        DIV                                              ~23     $22, !2
         44        CONCAT                                           ~24     '%2B', ~23
         45        CONCAT                                           ~25     ~24, '%0A'
         46        ECHO                                                     ~25
   12    47      > RETURN                                                   1

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