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<?php $date = new DateTimeImmutable (); $resultmonth1 = $date->format("n"); $date = $date->modify("next month"); $resultmonth2 = $date->format("n"); var_dump($resultmonth1,$resultmonth2); ?>
Finding entry points
Branch analysis from position: 0
1 jumps found. (Code = 62) Position 1 = -2
filename:       /in/Rqccc
function name:  (null)
number of ops:  20
compiled vars:  !0 = $date, !1 = $resultmonth1, !2 = $resultmonth2
line     #* E I O op                           fetch          ext  return  operands
-------------------------------------------------------------------------------------
   3     0  E >   NEW                                              $3      :35
         1        DO_FCALL                                      0          
         2        QM_ASSIGN                                                !0
   4     3        INIT_METHOD_CALL                                         !0, 'format'
         4        SEND_VAL_EX                                              'n'
         5        DO_FCALL                                      0  $6      
         6        QM_ASSIGN                                                !1
   6     7        INIT_METHOD_CALL                                         !0, 'modify'
         8        SEND_VAL_EX                                              'next+month'
         9        DO_FCALL                                      0  $8      
        10        QM_ASSIGN                                                !0
   7    11        INIT_METHOD_CALL                                         !0, 'format'
        12        SEND_VAL_EX                                              'n'
        13        DO_FCALL                                      0  $10     
        14        QM_ASSIGN                                                !2
   9    15        INIT_FCALL                                               'var_dump'
        16        SEND_VAR                                                 !1
        17        SEND_VAR                                                 !2
        18        DO_ICALL                                                 
  10    19      > RETURN                                                   1

Generated using Vulcan Logic Dumper, using php 7.4.0