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<?php $date = new \DateTime('2018-10-31'); $date->modify('+61 days'); var_dump($date->format('Y-m-d')); $date2 = new \DateTime('2018-10-31'); $date2->modify('+1 month'); var_dump($date2->format('Y-m-d')); $date2->modify('+1 month'); var_dump($date2->format('Y-m-d'));
Finding entry points
Branch analysis from position: 0
1 jumps found. (Code = 62) Position 1 = -2
filename:       /in/ASWvb
function name:  (null)
number of ops:  36
compiled vars:  !0 = $date, !1 = $date2
line      #* E I O op                           fetch          ext  return  operands
-------------------------------------------------------------------------------------
    3     0  E >   NEW                                              $2      'DateTime'
          1        SEND_VAL_EX                                              '2018-10-31'
          2        DO_FCALL                                      0          
          3        ASSIGN                                                   !0, $2
    4     4        INIT_METHOD_CALL                                         !0, 'modify'
          5        SEND_VAL_EX                                              '%2B61+days'
          6        DO_FCALL                                      0          
    5     7        INIT_FCALL                                               'var_dump'
          8        INIT_METHOD_CALL                                         !0, 'format'
          9        SEND_VAL_EX                                              'Y-m-d'
         10        DO_FCALL                                      0  $6      
         11        SEND_VAR                                                 $6
         12        DO_ICALL                                                 
    8    13        NEW                                              $8      'DateTime'
         14        SEND_VAL_EX                                              '2018-10-31'
         15        DO_FCALL                                      0          
         16        ASSIGN                                                   !1, $8
    9    17        INIT_METHOD_CALL                                         !1, 'modify'
         18        SEND_VAL_EX                                              '%2B1+month'
         19        DO_FCALL                                      0          
   10    20        INIT_FCALL                                               'var_dump'
         21        INIT_METHOD_CALL                                         !1, 'format'
         22        SEND_VAL_EX                                              'Y-m-d'
         23        DO_FCALL                                      0  $12     
         24        SEND_VAR                                                 $12
         25        DO_ICALL                                                 
   11    26        INIT_METHOD_CALL                                         !1, 'modify'
         27        SEND_VAL_EX                                              '%2B1+month'
         28        DO_FCALL                                      0          
   12    29        INIT_FCALL                                               'var_dump'
         30        INIT_METHOD_CALL                                         !1, 'format'
         31        SEND_VAL_EX                                              'Y-m-d'
         32        DO_FCALL                                      0  $15     
         33        SEND_VAR                                                 $15
         34        DO_ICALL                                                 
         35      > RETURN                                                   1

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