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<?php header('Content-Type: text/plain; charset=utf-8'); echo $currentDate = "2013-10-31", PHP_EOL; $date = DateTime::createFromFormat('Y-m-d', $currentDate); $date->sub(new DateInterval('P1M')); echo $date->format('Y-m-d'), PHP_EOL; $date->add(new DateInterval('P1M')); echo $date->format('Y-m-d'), PHP_EOL; ?>
Finding entry points
Branch analysis from position: 0
1 jumps found. (Code = 62) Position 1 = -2
filename:       /in/XcAu2
function name:  (null)
number of ops:  34
compiled vars:  !0 = $currentDate, !1 = $date
line      #* E I O op                           fetch          ext  return  operands
-------------------------------------------------------------------------------------
    2     0  E >   INIT_FCALL                                               'header'
          1        SEND_VAL                                                 'Content-Type%3A+text%2Fplain%3B+charset%3Dutf-8'
          2        DO_ICALL                                                 
    4     3        ASSIGN                                           ~3      !0, '2013-10-31'
          4        ECHO                                                     ~3
          5        ECHO                                                     '%0A'
    6     6        INIT_STATIC_METHOD_CALL                                  'DateTime', 'createFromFormat'
          7        SEND_VAL                                                 'Y-m-d'
          8        SEND_VAR                                                 !0
          9        DO_FCALL                                      0  $4      
         10        ASSIGN                                                   !1, $4
    8    11        INIT_METHOD_CALL                                         !1, 'sub'
         12        NEW                                              $6      'DateInterval'
         13        SEND_VAL_EX                                              'P1M'
         14        DO_FCALL                                      0          
         15        SEND_VAR_NO_REF_EX                                       $6
         16        DO_FCALL                                      0          
    9    17        INIT_METHOD_CALL                                         !1, 'format'
         18        SEND_VAL_EX                                              'Y-m-d'
         19        DO_FCALL                                      0  $9      
         20        ECHO                                                     $9
         21        ECHO                                                     '%0A'
   11    22        INIT_METHOD_CALL                                         !1, 'add'
         23        NEW                                              $10     'DateInterval'
         24        SEND_VAL_EX                                              'P1M'
         25        DO_FCALL                                      0          
         26        SEND_VAR_NO_REF_EX                                       $10
         27        DO_FCALL                                      0          
   12    28        INIT_METHOD_CALL                                         !1, 'format'
         29        SEND_VAL_EX                                              'Y-m-d'
         30        DO_FCALL                                      0  $13     
         31        ECHO                                                     $13
         32        ECHO                                                     '%0A'
   13    33      > RETURN                                                   1

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