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<?php $date = new DateTimeImmutable('2021-03-28 03:00:00', new DateTimeZone('Europe/Amsterdam')); $_30mbefore = $date->sub(new DateInterval('PT30M')); $_30mafter = $date->add(new DateInterval('PT30M')); var_dump($date->format(DATE_ATOM)); var_dump($_30mbefore->format(DATE_ATOM)); var_dump($_30mafter->format(DATE_ATOM));
Finding entry points
Branch analysis from position: 0
1 jumps found. (Code = 62) Position 1 = -2
filename:       /in/ZZjvq
function name:  (null)
number of ops:  41
compiled vars:  !0 = $date, !1 = $_30mbefore, !2 = $_30mafter
line      #* E I O op                           fetch          ext  return  operands
-------------------------------------------------------------------------------------
    2     0  E >   NEW                                              $3      'DateTimeImmutable'
          1        SEND_VAL_EX                                              '2021-03-28+03%3A00%3A00'
          2        NEW                                              $4      'DateTimeZone'
          3        SEND_VAL_EX                                              'Europe%2FAmsterdam'
          4        DO_FCALL                                      0          
          5        SEND_VAR_NO_REF_EX                                       $4
          6        DO_FCALL                                      0          
          7        ASSIGN                                                   !0, $3
    3     8        INIT_METHOD_CALL                                         !0, 'sub'
          9        NEW                                              $8      'DateInterval'
         10        SEND_VAL_EX                                              'PT30M'
         11        DO_FCALL                                      0          
         12        SEND_VAR_NO_REF_EX                                       $8
         13        DO_FCALL                                      0  $10     
         14        ASSIGN                                                   !1, $10
    4    15        INIT_METHOD_CALL                                         !0, 'add'
         16        NEW                                              $12     'DateInterval'
         17        SEND_VAL_EX                                              'PT30M'
         18        DO_FCALL                                      0          
         19        SEND_VAR_NO_REF_EX                                       $12
         20        DO_FCALL                                      0  $14     
         21        ASSIGN                                                   !2, $14
    6    22        INIT_FCALL                                               'var_dump'
         23        INIT_METHOD_CALL                                         !0, 'format'
         24        SEND_VAL_EX                                              'Y-m-d%5CTH%3Ai%3AsP'
         25        DO_FCALL                                      0  $16     
         26        SEND_VAR                                                 $16
         27        DO_ICALL                                                 
    7    28        INIT_FCALL                                               'var_dump'
         29        INIT_METHOD_CALL                                         !1, 'format'
         30        SEND_VAL_EX                                              'Y-m-d%5CTH%3Ai%3AsP'
         31        DO_FCALL                                      0  $18     
         32        SEND_VAR                                                 $18
         33        DO_ICALL                                                 
    8    34        INIT_FCALL                                               'var_dump'
         35        INIT_METHOD_CALL                                         !2, 'format'
         36        SEND_VAL_EX                                              'Y-m-d%5CTH%3Ai%3AsP'
         37        DO_FCALL                                      0  $20     
         38        SEND_VAR                                                 $20
         39        DO_ICALL                                                 
         40      > RETURN                                                   1

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