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<?php $tz = new \DateTimeZone('Europe/Moscow'); $dt = new \DateTimeImmutable('now'); $dt->setTimezone($tz); $timestamp = (int) $dt->format('U'); $timestamp += 1000; $dt2 = \DateTimeImmutable::createFromFormat('U', $timestamp, $tz); assert($dt->getTimezone() === $dt2->getTimezone());
Finding entry points
Branch analysis from position: 0
1 jumps found. (Code = 62) Position 1 = -2
filename:       /in/pIHjh
function name:  (null)
number of ops:  34
compiled vars:  !0 = $tz, !1 = $dt, !2 = $timestamp, !3 = $dt2
line      #* E I O op                           fetch          ext  return  operands
-------------------------------------------------------------------------------------
    3     0  E >   NEW                                              $4      'DateTimeZone'
          1        SEND_VAL_EX                                              'Europe%2FMoscow'
          2        DO_FCALL                                      0          
          3        ASSIGN                                                   !0, $4
    4     4        NEW                                              $7      'DateTimeImmutable'
          5        SEND_VAL_EX                                              'now'
          6        DO_FCALL                                      0          
          7        ASSIGN                                                   !1, $7
    5     8        INIT_METHOD_CALL                                         !1, 'setTimezone'
          9        SEND_VAR_EX                                              !0
         10        DO_FCALL                                      0          
    7    11        INIT_METHOD_CALL                                         !1, 'format'
         12        SEND_VAL_EX                                              'U'
         13        DO_FCALL                                      0  $11     
         14        CAST                                          4  ~12     $11
         15        ASSIGN                                                   !2, ~12
    8    16        ASSIGN_OP                                     1          !2, 1000
    9    17        INIT_STATIC_METHOD_CALL                                  'DateTimeImmutable', 'createFromFormat'
         18        SEND_VAL                                                 'U'
         19        SEND_VAR                                                 !2
         20        SEND_VAR                                                 !0
         21        DO_FCALL                                      0  $15     
         22        ASSIGN                                                   !3, $15
   10    23        ASSERT_CHECK                                             
         24        INIT_FCALL                                               'assert'
         25        INIT_METHOD_CALL                                         !1, 'getTimezone'
         26        DO_FCALL                                      0  $17     
         27        INIT_METHOD_CALL                                         !3, 'getTimezone'
         28        DO_FCALL                                      0  $18     
         29        IS_IDENTICAL                                     ~19     $17, $18
         30        SEND_VAL                                                 ~19
         31        SEND_VAL                                                 'assert%28%24dt-%3EgetTimezone%28%29+%3D%3D%3D+%24dt2-%3EgetTimezone%28%29%29'
         32        DO_ICALL                                                 
         33      > RETURN                                                   1

Generated using Vulcan Logic Dumper, using php 8.0.0


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