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<?php $twoDays = new DateInterval('P2D'); $fortyEightHours = new DateInterval('PT48H'); $ref = new DateTimeImmutable('2019-04-07T01:00:00', new DateTimeZone('Australia/Melbourne')); echo 'Reference: ', $ref->format('r'), PHP_EOL; echo 'Plus 2 days: ', $ref->add($twoDays)->format('r'), PHP_EOL; echo 'Plus 48 hours: ', $ref->add($fortyEightHours)->format('r'), PHP_EOL;
Finding entry points
Branch analysis from position: 0
1 jumps found. (Code = 62) Position 1 = -2
filename:       /in/L4tKo
function name:  (null)
number of ops:  41
compiled vars:  !0 = $twoDays, !1 = $fortyEightHours, !2 = $ref
line      #* E I O op                           fetch          ext  return  operands
-------------------------------------------------------------------------------------
    3     0  E >   NEW                                              $3      'DateInterval'
          1        SEND_VAL_EX                                              'P2D'
          2        DO_FCALL                                      0          
          3        ASSIGN                                                   !0, $3
    4     4        NEW                                              $6      'DateInterval'
          5        SEND_VAL_EX                                              'PT48H'
          6        DO_FCALL                                      0          
          7        ASSIGN                                                   !1, $6
    6     8        NEW                                              $9      'DateTimeImmutable'
          9        SEND_VAL_EX                                              '2019-04-07T01%3A00%3A00'
         10        NEW                                              $10     'DateTimeZone'
         11        SEND_VAL_EX                                              'Australia%2FMelbourne'
         12        DO_FCALL                                      0          
         13        SEND_VAR_NO_REF_EX                                       $10
         14        DO_FCALL                                      0          
         15        ASSIGN                                                   !2, $9
    8    16        ECHO                                                     'Reference%3A+++++'
         17        INIT_METHOD_CALL                                         !2, 'format'
         18        SEND_VAL_EX                                              'r'
         19        DO_FCALL                                      0  $14     
         20        ECHO                                                     $14
         21        ECHO                                                     '%0A'
    9    22        ECHO                                                     'Plus+2+days%3A+++'
         23        INIT_METHOD_CALL                                         !2, 'add'
         24        SEND_VAR_EX                                              !0
         25        DO_FCALL                                      0  $15     
         26        INIT_METHOD_CALL                                         $15, 'format'
         27        SEND_VAL_EX                                              'r'
         28        DO_FCALL                                      0  $16     
         29        ECHO                                                     $16
         30        ECHO                                                     '%0A'
   10    31        ECHO                                                     'Plus+48+hours%3A+'
         32        INIT_METHOD_CALL                                         !2, 'add'
         33        SEND_VAR_EX                                              !1
         34        DO_FCALL                                      0  $17     
         35        INIT_METHOD_CALL                                         $17, 'format'
         36        SEND_VAL_EX                                              'r'
         37        DO_FCALL                                      0  $18     
         38        ECHO                                                     $18
         39        ECHO                                                     '%0A'
   11    40      > RETURN                                                   1

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