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<?php $dateUs = new \DateTimeImmutable('2015-10-20 00:00', new \DateTimeZone('America/New_York')); $dateE = new \DateTimeImmutable('2015-10-20 00:00', new \DateTimeZone('Europe/Prague')); var_dump($dateUs->format('Y-m-d G:i:s e') === $dateEu->format('Y-m-d G:i:s e'));
Finding entry points
Branch analysis from position: 0
1 jumps found. (Code = 62) Position 1 = -2
filename:       /in/E5nj6
function name:  (null)
number of ops:  27
compiled vars:  !0 = $dateUs, !1 = $dateE, !2 = $dateEu
line      #* E I O op                           fetch          ext  return  operands
-------------------------------------------------------------------------------------
    3     0  E >   NEW                                              $3      'DateTimeImmutable'
          1        SEND_VAL_EX                                              '2015-10-20+00%3A00'
          2        NEW                                              $4      'DateTimeZone'
          3        SEND_VAL_EX                                              'America%2FNew_York'
          4        DO_FCALL                                      0          
          5        SEND_VAR_NO_REF_EX                                       $4
          6        DO_FCALL                                      0          
          7        ASSIGN                                                   !0, $3
    4     8        NEW                                              $8      'DateTimeImmutable'
          9        SEND_VAL_EX                                              '2015-10-20+00%3A00'
         10        NEW                                              $9      'DateTimeZone'
         11        SEND_VAL_EX                                              'Europe%2FPrague'
         12        DO_FCALL                                      0          
         13        SEND_VAR_NO_REF_EX                                       $9
         14        DO_FCALL                                      0          
         15        ASSIGN                                                   !1, $8
    6    16        INIT_FCALL                                               'var_dump'
         17        INIT_METHOD_CALL                                         !0, 'format'
         18        SEND_VAL_EX                                              'Y-m-d+G%3Ai%3As+e'
         19        DO_FCALL                                      0  $13     
         20        INIT_METHOD_CALL                                         !2, 'format'
         21        SEND_VAL_EX                                              'Y-m-d+G%3Ai%3As+e'
         22        DO_FCALL                                      0  $14     
         23        IS_IDENTICAL                                     ~15     $13, $14
         24        SEND_VAL                                                 ~15
         25        DO_ICALL                                                 
         26      > RETURN                                                   1

Generated using Vulcan Logic Dumper, using php 8.0.0


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