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<?php date_default_timezone_set('UTC'); $date = new \DateTime('2014-01-30'); $date->add(new \DateInterval('P1M')); echo $date->format('Y-m-d') . PHP_EOL; // echoes 2014-03-02 $date = new \DateTime('2014-01-31'); $date->add(new \DateInterval('P1M')); echo $date->format('Y-m-d') . PHP_EOL; // echoes 2014-03-03
Finding entry points
Branch analysis from position: 0
1 jumps found. (Code = 62) Position 1 = -2
filename:       /in/ZeVol
function name:  (null)
number of ops:  34
compiled vars:  !0 = $date
line      #* E I O op                           fetch          ext  return  operands
-------------------------------------------------------------------------------------
    3     0  E >   INIT_FCALL                                               'date_default_timezone_set'
          1        SEND_VAL                                                 'UTC'
          2        DO_ICALL                                                 
    5     3        NEW                                              $2      'DateTime'
          4        SEND_VAL_EX                                              '2014-01-30'
          5        DO_FCALL                                      0          
          6        ASSIGN                                                   !0, $2
    6     7        INIT_METHOD_CALL                                         !0, 'add'
          8        NEW                                              $5      'DateInterval'
          9        SEND_VAL_EX                                              'P1M'
         10        DO_FCALL                                      0          
         11        SEND_VAR_NO_REF_EX                                       $5
         12        DO_FCALL                                      0          
    7    13        INIT_METHOD_CALL                                         !0, 'format'
         14        SEND_VAL_EX                                              'Y-m-d'
         15        DO_FCALL                                      0  $8      
         16        CONCAT                                           ~9      $8, '%0A'
         17        ECHO                                                     ~9
    9    18        NEW                                              $10     'DateTime'
         19        SEND_VAL_EX                                              '2014-01-31'
         20        DO_FCALL                                      0          
         21        ASSIGN                                                   !0, $10
   10    22        INIT_METHOD_CALL                                         !0, 'add'
         23        NEW                                              $13     'DateInterval'
         24        SEND_VAL_EX                                              'P1M'
         25        DO_FCALL                                      0          
         26        SEND_VAR_NO_REF_EX                                       $13
         27        DO_FCALL                                      0          
   11    28        INIT_METHOD_CALL                                         !0, 'format'
         29        SEND_VAL_EX                                              'Y-m-d'
         30        DO_FCALL                                      0  $16     
         31        CONCAT                                           ~17     $16, '%0A'
         32        ECHO                                                     ~17
         33      > RETURN                                                   1

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