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<?php $datetime1 = new \DateTime('01.03.2018'); $datetime2 = new \DateTime('31.03.2018'); $interval = $datetime1->diff($datetime2); var_dump($interval->format('%m')); //string(1) "1" $datetime1 = new \DateTime('01.01.2018'); $datetime2 = new \DateTime('31.01.2018'); $interval = $datetime1->diff($datetime2); var_dump($interval->format('%m')); //string(1) "0" $datetime1 = new \DateTime('01.02.2018'); $datetime2 = new \DateTime('28.02.2018'); $interval = $datetime1->diff($datetime2); var_dump($interval->format('%m')); //string(1) "0"
Finding entry points
Branch analysis from position: 0
1 jumps found. (Code = 62) Position 1 = -2
filename:       /in/KXYvi
function name:  (null)
number of ops:  55
compiled vars:  !0 = $datetime1, !1 = $datetime2, !2 = $interval
line      #* E I O op                               fetch          ext  return  operands
-----------------------------------------------------------------------------------------
    3     0  E >   NEW                                                  $3      'DateTime'
          1        SEND_VAL_EX                                                  '01.03.2018'
          2        DO_FCALL                                          0          
          3        ASSIGN                                                       !0, $3
    4     4        NEW                                                  $6      'DateTime'
          5        SEND_VAL_EX                                                  '31.03.2018'
          6        DO_FCALL                                          0          
          7        ASSIGN                                                       !1, $6
    5     8        INIT_METHOD_CALL                                             !0, 'diff'
          9        SEND_VAR_EX                                                  !1
         10        DO_FCALL                                          0  $9      
         11        ASSIGN                                                       !2, $9
    6    12        INIT_FCALL                                                   'var_dump'
         13        INIT_METHOD_CALL                                             !2, 'format'
         14        SEND_VAL_EX                                                  '%25m'
         15        DO_FCALL                                          0  $11     
         16        SEND_VAR                                                     $11
         17        DO_ICALL                                                     
    9    18        NEW                                                  $13     'DateTime'
         19        SEND_VAL_EX                                                  '01.01.2018'
         20        DO_FCALL                                          0          
         21        ASSIGN                                                       !0, $13
   10    22        NEW                                                  $16     'DateTime'
         23        SEND_VAL_EX                                                  '31.01.2018'
         24        DO_FCALL                                          0          
         25        ASSIGN                                                       !1, $16
   11    26        INIT_METHOD_CALL                                             !0, 'diff'
         27        SEND_VAR_EX                                                  !1
         28        DO_FCALL                                          0  $19     
         29        ASSIGN                                                       !2, $19
   12    30        INIT_FCALL                                                   'var_dump'
         31        INIT_METHOD_CALL                                             !2, 'format'
         32        SEND_VAL_EX                                                  '%25m'
         33        DO_FCALL                                          0  $21     
         34        SEND_VAR                                                     $21
         35        DO_ICALL                                                     
   15    36        NEW                                                  $23     'DateTime'
         37        SEND_VAL_EX                                                  '01.02.2018'
         38        DO_FCALL                                          0          
         39        ASSIGN                                                       !0, $23
   16    40        NEW                                                  $26     'DateTime'
         41        SEND_VAL_EX                                                  '28.02.2018'
         42        DO_FCALL                                          0          
         43        ASSIGN                                                       !1, $26
   17    44        INIT_METHOD_CALL                                             !0, 'diff'
         45        SEND_VAR_EX                                                  !1
         46        DO_FCALL                                          0  $29     
         47        ASSIGN                                                       !2, $29
   18    48        INIT_FCALL                                                   'var_dump'
         49        INIT_METHOD_CALL                                             !2, 'format'
         50        SEND_VAL_EX                                                  '%25m'
         51        DO_FCALL                                          0  $31     
         52        SEND_VAR                                                     $31
         53        DO_ICALL                                                     
   19    54      > RETURN                                                       1

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