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<?php date_default_timezone_set('Europe/Amsterdam'); $baseDate = new DateTimeImmutable('2022-03-27 01:30:00'); echo $baseDate->add(new DateInterval('PT1H'))->format('Y-m-d H:i:s'), " ✓ 1\n"; echo $baseDate->add(new DateInterval('PT2H'))->format('Y-m-d H:i:s'), " ✕ 2\n"; echo $baseDate->add(new DateInterval('PT1H'))->add(new DateInterval('PT1H'))->format('Y-m-d H:i:s'), " ✓ 1+1\n"; echo $baseDate->add(new DateInterval('PT3H'))->format('Y-m-d H:i:s'), " ✕ 3\n"; echo $baseDate->add(new DateInterval('PT2H'))->add(new DateInterval('PT1H'))->format('Y-m-d H:i:s'), " ✕ 2+1\n"; echo $baseDate->add(new DateInterval('PT1H'))->add(new DateInterval('PT2H'))->format('Y-m-d H:i:s'), " ✓ 1+2\n"; echo $baseDate->add(new DateInterval('PT1H'))->add(new DateInterval('PT1H'))->add(new DateInterval('PT1H'))->format('Y-m-d H:i:s'), " ✓ 1+1+1\n";
Finding entry points
Branch analysis from position: 0
1 jumps found. (Code = 62) Position 1 = -2
filename:       /in/AoXgT
function name:  (null)
number of ops:  115
compiled vars:  !0 = $baseDate
line      #* E I O op                               fetch          ext  return  operands
-----------------------------------------------------------------------------------------
    2     0  E >   INIT_FCALL                                                   'date_default_timezone_set'
          1        SEND_VAL                                                     'Europe%2FAmsterdam'
          2        DO_ICALL                                                     
    3     3        NEW                                                  $2      'DateTimeImmutable'
          4        SEND_VAL_EX                                                  '2022-03-27+01%3A30%3A00'
          5        DO_FCALL                                          0          
          6        ASSIGN                                                       !0, $2
    4     7        INIT_METHOD_CALL                                             !0, 'add'
          8        NEW                                                  $5      'DateInterval'
          9        SEND_VAL_EX                                                  'PT1H'
         10        DO_FCALL                                          0          
         11        SEND_VAR_NO_REF_EX                                           $5
         12        DO_FCALL                                          0  $7      
         13        INIT_METHOD_CALL                                             $7, 'format'
         14        SEND_VAL_EX                                                  'Y-m-d+H%3Ai%3As'
         15        DO_FCALL                                          0  $8      
         16        ECHO                                                         $8
         17        ECHO                                                         '+%E2%9C%93+1%0A'
    5    18        INIT_METHOD_CALL                                             !0, 'add'
         19        NEW                                                  $9      'DateInterval'
         20        SEND_VAL_EX                                                  'PT2H'
         21        DO_FCALL                                          0          
         22        SEND_VAR_NO_REF_EX                                           $9
         23        DO_FCALL                                          0  $11     
         24        INIT_METHOD_CALL                                             $11, 'format'
         25        SEND_VAL_EX                                                  'Y-m-d+H%3Ai%3As'
         26        DO_FCALL                                          0  $12     
         27        ECHO                                                         $12
         28        ECHO                                                         '+%E2%9C%95+2%0A'
    6    29        INIT_METHOD_CALL                                             !0, 'add'
         30        NEW                                                  $13     'DateInterval'
         31        SEND_VAL_EX                                                  'PT1H'
         32        DO_FCALL                                          0          
         33        SEND_VAR_NO_REF_EX                                           $13
         34        DO_FCALL                                          0  $15     
         35        INIT_METHOD_CALL                                             $15, 'add'
         36        NEW                                                  $16     'DateInterval'
         37        SEND_VAL_EX                                                  'PT1H'
         38        DO_FCALL                                          0          
         39        SEND_VAR_NO_REF_EX                                           $16
         40        DO_FCALL                                          0  $18     
         41        INIT_METHOD_CALL                                             $18, 'format'
         42        SEND_VAL_EX                                                  'Y-m-d+H%3Ai%3As'
         43        DO_FCALL                                          0  $19     
         44        ECHO                                                         $19
         45        ECHO                                                         '+%E2%9C%93+1%2B1%0A'
    7    46        INIT_METHOD_CALL                                             !0, 'add'
         47        NEW                                                  $20     'DateInterval'
         48        SEND_VAL_EX                                                  'PT3H'
         49        DO_FCALL                                          0          
         50        SEND_VAR_NO_REF_EX                                           $20
         51        DO_FCALL                                          0  $22     
         52        INIT_METHOD_CALL                                             $22, 'format'
         53        SEND_VAL_EX                                                  'Y-m-d+H%3Ai%3As'
         54        DO_FCALL                                          0  $23     
         55        ECHO                                                         $23
         56        ECHO                                                         '+%E2%9C%95+3%0A'
    8    57        INIT_METHOD_CALL                                             !0, 'add'
         58        NEW                                                  $24     'DateInterval'
         59        SEND_VAL_EX                                                  'PT2H'
         60        DO_FCALL                                          0          
         61        SEND_VAR_NO_REF_EX                                           $24
         62        DO_FCALL                                          0  $26     
         63        INIT_METHOD_CALL                                             $26, 'add'
         64        NEW                                                  $27     'DateInterval'
         65        SEND_VAL_EX                                                  'PT1H'
         66        DO_FCALL                                          0          
         67        SEND_VAR_NO_REF_EX                                           $27
         68        DO_FCALL                                          0  $29     
         69        INIT_METHOD_CALL                                             $29, 'format'
         70        SEND_VAL_EX                                                  'Y-m-d+H%3Ai%3As'
         71        DO_FCALL                                          0  $30     
         72        ECHO                                                         $30
         73        ECHO                                                         '+%E2%9C%95+2%2B1%0A'
    9    74        INIT_METHOD_CALL                                             !0, 'add'
         75        NEW                                                  $31     'DateInterval'
         76        SEND_VAL_EX                                                  'PT1H'
         77        DO_FCALL                                          0          
         78        SEND_VAR_NO_REF_EX                                           $31
         79        DO_FCALL                                          0  $33     
         80        INIT_METHOD_CALL                                             $33, 'add'
         81        NEW                                                  $34     'DateInterval'
         82        SEND_VAL_EX                                                  'PT2H'
         83        DO_FCALL                                          0          
         84        SEND_VAR_NO_REF_EX                                           $34
         85        DO_FCALL                                          0  $36     
         86        INIT_METHOD_CALL                                             $36, 'format'
         87        SEND_VAL_EX                                                  'Y-m-d+H%3Ai%3As'
         88        DO_FCALL                                          0  $37     
         89        ECHO                                                         $37
         90        ECHO                                                         '+%E2%9C%93+1%2B2%0A'
   10    91        INIT_METHOD_CALL                                             !0, 'add'
         92        NEW                                                  $38     'DateInterval'
         93        SEND_VAL_EX                                                  'PT1H'
         94        DO_FCALL                                          0          
         95        SEND_VAR_NO_REF_EX                                           $38
         96        DO_FCALL                                          0  $40     
         97        INIT_METHOD_CALL                                             $40, 'add'
         98        NEW                                                  $41     'DateInterval'
         99        SEND_VAL_EX                                                  'PT1H'
        100        DO_FCALL                                          0          
        101        SEND_VAR_NO_REF_EX                                           $41
        102        DO_FCALL                                          0  $43     
        103        INIT_METHOD_CALL                                             $43, 'add'
        104        NEW                                                  $44     'DateInterval'
        105        SEND_VAL_EX                                                  'PT1H'
        106        DO_FCALL                                          0          
        107        SEND_VAR_NO_REF_EX                                           $44
        108        DO_FCALL                                          0  $46     
        109        INIT_METHOD_CALL                                             $46, 'format'
        110        SEND_VAL_EX                                                  'Y-m-d+H%3Ai%3As'
        111        DO_FCALL                                          0  $47     
        112        ECHO                                                         $47
        113        ECHO                                                         '+%E2%9C%93+1%2B1%2B1%0A'
        114      > RETURN                                                       1

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