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<?php date_default_timezone_set('Europe/Berlin'); $date = new DateTime('2000-12-31'); $date->add(new DateInterval('P1M')); var_dump($date->format('Y-m-d')); $date->add(new DateInterval('P1M')); var_dump($date->format('Y-m-d'));
Finding entry points
Branch analysis from position: 0
1 jumps found. (Code = 62) Position 1 = -2
filename:       /in/YUXia
function name:  (null)
number of ops:  32
compiled vars:  !0 = $date
line      #* E I O op                           fetch          ext  return  operands
-------------------------------------------------------------------------------------
    3     0  E >   INIT_FCALL                                               'date_default_timezone_set'
          1        SEND_VAL                                                 'Europe%2FBerlin'
          2        DO_ICALL                                                 
    4     3        NEW                                              $2      'DateTime'
          4        SEND_VAL_EX                                              '2000-12-31'
          5        DO_FCALL                                      0          
          6        ASSIGN                                                   !0, $2
    5     7        INIT_METHOD_CALL                                         !0, 'add'
          8        NEW                                              $5      'DateInterval'
          9        SEND_VAL_EX                                              'P1M'
         10        DO_FCALL                                      0          
         11        SEND_VAR_NO_REF_EX                                       $5
         12        DO_FCALL                                      0          
    6    13        INIT_FCALL                                               'var_dump'
         14        INIT_METHOD_CALL                                         !0, 'format'
         15        SEND_VAL_EX                                              'Y-m-d'
         16        DO_FCALL                                      0  $8      
         17        SEND_VAR                                                 $8
         18        DO_ICALL                                                 
    8    19        INIT_METHOD_CALL                                         !0, 'add'
         20        NEW                                              $10     'DateInterval'
         21        SEND_VAL_EX                                              'P1M'
         22        DO_FCALL                                      0          
         23        SEND_VAR_NO_REF_EX                                       $10
         24        DO_FCALL                                      0          
    9    25        INIT_FCALL                                               'var_dump'
         26        INIT_METHOD_CALL                                         !0, 'format'
         27        SEND_VAL_EX                                              'Y-m-d'
         28        DO_FCALL                                      0  $13     
         29        SEND_VAR                                                 $13
         30        DO_ICALL                                                 
         31      > RETURN                                                   1

Generated using Vulcan Logic Dumper, using php 8.0.0


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