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<?php echo date_default_timezone_get(); // prints Europe/Amsterdam echo "\n\n"; $dateTime = new DateTime('2016-10-29 10:00:00'); echo $dateTime->format(DateTime::RFC3339); echo "\n"; $dateTime->add(new DateInterval('PT23H')); echo $dateTime->format(DateTime::RFC3339); // prints 2016-10-30T08:00:00+01:00 echo "\n\n"; $dateTime = new DateTime('2016-10-29 10:00:00'); echo $dateTime->format(DateTime::RFC3339); echo "\n"; $dateTime->modify('+ 23 hours'); echo $dateTime->format(DateTime::RFC3339); // prints 2016-10-30T09:00:00+01:00 echo "\n\n";
Finding entry points
Branch analysis from position: 0
1 jumps found. (Code = 62) Position 1 = -2
filename:       /in/4fncr
function name:  (null)
number of ops:  42
compiled vars:  !0 = $dateTime
line      #* E I O op                               fetch          ext  return  operands
-----------------------------------------------------------------------------------------
    3     0  E >   INIT_FCALL                                                   'date_default_timezone_get'
          1        DO_ICALL                                             $1      
          2        ECHO                                                         $1
    4     3        ECHO                                                         '%0A%0A'
    6     4        NEW                                                  $2      'DateTime'
          5        SEND_VAL_EX                                                  '2016-10-29+10%3A00%3A00'
          6        DO_FCALL                                          0          
          7        ASSIGN                                                       !0, $2
    7     8        INIT_METHOD_CALL                                             !0, 'format'
          9        SEND_VAL_EX                                                  'Y-m-d%5CTH%3Ai%3AsP'
         10        DO_FCALL                                          0  $5      
         11        ECHO                                                         $5
    8    12        ECHO                                                         '%0A'
    9    13        INIT_METHOD_CALL                                             !0, 'add'
         14        NEW                                                  $6      'DateInterval'
         15        SEND_VAL_EX                                                  'PT23H'
         16        DO_FCALL                                          0          
         17        SEND_VAR_NO_REF_EX                                           $6
         18        DO_FCALL                                          0          
   10    19        INIT_METHOD_CALL                                             !0, 'format'
         20        SEND_VAL_EX                                                  'Y-m-d%5CTH%3Ai%3AsP'
         21        DO_FCALL                                          0  $9      
         22        ECHO                                                         $9
   11    23        ECHO                                                         '%0A%0A'
   15    24        NEW                                                  $10     'DateTime'
         25        SEND_VAL_EX                                                  '2016-10-29+10%3A00%3A00'
         26        DO_FCALL                                          0          
         27        ASSIGN                                                       !0, $10
   16    28        INIT_METHOD_CALL                                             !0, 'format'
         29        SEND_VAL_EX                                                  'Y-m-d%5CTH%3Ai%3AsP'
         30        DO_FCALL                                          0  $13     
         31        ECHO                                                         $13
   17    32        ECHO                                                         '%0A'
   18    33        INIT_METHOD_CALL                                             !0, 'modify'
         34        SEND_VAL_EX                                                  '%2B+23+hours'
         35        DO_FCALL                                          0          
   19    36        INIT_METHOD_CALL                                             !0, 'format'
         37        SEND_VAL_EX                                                  'Y-m-d%5CTH%3Ai%3AsP'
         38        DO_FCALL                                          0  $15     
         39        ECHO                                                         $15
   20    40        ECHO                                                         '%0A%0A'
         41      > RETURN                                                       1

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