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<?php $datetime1 = new DateTime(); var_dump($datetime1->getTimezone()->getName()); date_default_timezone_set('America/New_York'); $datetime2 = new DateTime(); var_dump($datetime2->getTimezone()->getName());
Finding entry points
Branch analysis from position: 0
1 jumps found. (Code = 62) Position 1 = -2
filename:       /in/ZNLK7
function name:  (null)
number of ops:  24
compiled vars:  !0 = $datetime1, !1 = $datetime2
line      #* E I O op                           fetch          ext  return  operands
-------------------------------------------------------------------------------------
    3     0  E >   NEW                                              $2      'DateTime'
          1        DO_FCALL                                      0          
          2        ASSIGN                                                   !0, $2
    4     3        INIT_FCALL                                               'var_dump'
          4        INIT_METHOD_CALL                                         !0, 'getTimezone'
          5        DO_FCALL                                      0  $5      
          6        INIT_METHOD_CALL                                         $5, 'getName'
          7        DO_FCALL                                      0  $6      
          8        SEND_VAR                                                 $6
          9        DO_ICALL                                                 
    6    10        INIT_FCALL                                               'date_default_timezone_set'
         11        SEND_VAL                                                 'America%2FNew_York'
         12        DO_ICALL                                                 
    7    13        NEW                                              $9      'DateTime'
         14        DO_FCALL                                      0          
         15        ASSIGN                                                   !1, $9
    8    16        INIT_FCALL                                               'var_dump'
         17        INIT_METHOD_CALL                                         !1, 'getTimezone'
         18        DO_FCALL                                      0  $12     
         19        INIT_METHOD_CALL                                         $12, 'getName'
         20        DO_FCALL                                      0  $13     
         21        SEND_VAR                                                 $13
         22        DO_ICALL                                                 
         23      > RETURN                                                   1

Generated using Vulcan Logic Dumper, using php 8.0.0


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