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<?php $datetime = new DateTime('2013-01-29'); $datetime->modify('+1 day'); echo $datetime->format('Y-m-d H:i:s');echo "\n"; // Available in PHP 5.3 $datetime = new DateTime('2013-01-29'); $datetime->add(new DateInterval('P1D')); echo $datetime->format('Y-m-d H:i:s');echo "\n"; // Available in PHP 5.4 echo (new DateTime('2013-01-29'))->add(new DateInterval('P1D'))->format('Y-m-d H:i:s');echo "\n"; // Available in PHP 5.5+ $start = new DateTimeImmutable('2013-01-29'); $datetime = $start->modify('+1 day'); echo $datetime->format('Y-m-d H:i:s');
Finding entry points
Branch analysis from position: 0
1 jumps found. (Code = 62) Position 1 = -2
filename:       /in/VpGNT
function name:  (null)
number of ops:  54
compiled vars:  !0 = $datetime, !1 = $start
line      #* E I O op                           fetch          ext  return  operands
-------------------------------------------------------------------------------------
    2     0  E >   NEW                                              $2      'DateTime'
          1        SEND_VAL_EX                                              '2013-01-29'
          2        DO_FCALL                                      0          
          3        ASSIGN                                                   !0, $2
    3     4        INIT_METHOD_CALL                                         !0, 'modify'
          5        SEND_VAL_EX                                              '%2B1+day'
          6        DO_FCALL                                      0          
    4     7        INIT_METHOD_CALL                                         !0, 'format'
          8        SEND_VAL_EX                                              'Y-m-d+H%3Ai%3As'
          9        DO_FCALL                                      0  $6      
         10        ECHO                                                     $6
         11        ECHO                                                     '%0A'
    8    12        NEW                                              $7      'DateTime'
         13        SEND_VAL_EX                                              '2013-01-29'
         14        DO_FCALL                                      0          
         15        ASSIGN                                                   !0, $7
    9    16        INIT_METHOD_CALL                                         !0, 'add'
         17        NEW                                              $10     'DateInterval'
         18        SEND_VAL_EX                                              'P1D'
         19        DO_FCALL                                      0          
         20        SEND_VAR_NO_REF_EX                                       $10
         21        DO_FCALL                                      0          
   10    22        INIT_METHOD_CALL                                         !0, 'format'
         23        SEND_VAL_EX                                              'Y-m-d+H%3Ai%3As'
         24        DO_FCALL                                      0  $13     
         25        ECHO                                                     $13
         26        ECHO                                                     '%0A'
   14    27        NEW                                              $14     'DateTime'
         28        SEND_VAL_EX                                              '2013-01-29'
         29        DO_FCALL                                      0          
         30        INIT_METHOD_CALL                                         $14, 'add'
         31        NEW                                              $16     'DateInterval'
         32        SEND_VAL_EX                                              'P1D'
         33        DO_FCALL                                      0          
         34        SEND_VAR_NO_REF_EX                                       $16
         35        DO_FCALL                                      0  $18     
         36        INIT_METHOD_CALL                                         $18, 'format'
         37        SEND_VAL_EX                                              'Y-m-d+H%3Ai%3As'
         38        DO_FCALL                                      0  $19     
         39        ECHO                                                     $19
         40        ECHO                                                     '%0A'
   18    41        NEW                                              $20     'DateTimeImmutable'
         42        SEND_VAL_EX                                              '2013-01-29'
         43        DO_FCALL                                      0          
         44        ASSIGN                                                   !1, $20
   19    45        INIT_METHOD_CALL                                         !1, 'modify'
         46        SEND_VAL_EX                                              '%2B1+day'
         47        DO_FCALL                                      0  $23     
         48        ASSIGN                                                   !0, $23
   20    49        INIT_METHOD_CALL                                         !0, 'format'
         50        SEND_VAL_EX                                              'Y-m-d+H%3Ai%3As'
         51        DO_FCALL                                      0  $25     
         52        ECHO                                                     $25
         53      > RETURN                                                   1

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