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<?php $d1 = new DateTime('2019-01'); $d2 = new DateTime('2019-04'); $interval = $d2->diff($d1); $counter = (int) $interval->format('%m'); do { echo $counter . PHP_EOL; echo $d1->format( 'Y-m-t' ) . PHP_EOL; $d1->modify('+1 months'); $counter--; } while ($counter >= 0);
Finding entry points
Branch analysis from position: 0
2 jumps found. (Code = 44) Position 1 = 30, Position 2 = 17
Branch analysis from position: 30
1 jumps found. (Code = 62) Position 1 = -2
Branch analysis from position: 17
filename:       /in/hMTsp
function name:  (null)
number of ops:  31
compiled vars:  !0 = $d1, !1 = $d2, !2 = $interval, !3 = $counter
line      #* E I O op                           fetch          ext  return  operands
-------------------------------------------------------------------------------------
    2     0  E >   NEW                                              $4      'DateTime'
          1        SEND_VAL_EX                                              '2019-01'
          2        DO_FCALL                                      0          
          3        ASSIGN                                                   !0, $4
    3     4        NEW                                              $7      'DateTime'
          5        SEND_VAL_EX                                              '2019-04'
          6        DO_FCALL                                      0          
          7        ASSIGN                                                   !1, $7
    4     8        INIT_METHOD_CALL                                         !1, 'diff'
          9        SEND_VAR_EX                                              !0
         10        DO_FCALL                                      0  $10     
         11        ASSIGN                                                   !2, $10
    5    12        INIT_METHOD_CALL                                         !2, 'format'
         13        SEND_VAL_EX                                              '%25m'
         14        DO_FCALL                                      0  $12     
         15        CAST                                          4  ~13     $12
         16        ASSIGN                                                   !3, ~13
    8    17    >   CONCAT                                           ~15     !3, '%0A'
         18        ECHO                                                     ~15
    9    19        INIT_METHOD_CALL                                         !0, 'format'
         20        SEND_VAL_EX                                              'Y-m-t'
         21        DO_FCALL                                      0  $16     
         22        CONCAT                                           ~17     $16, '%0A'
         23        ECHO                                                     ~17
   10    24        INIT_METHOD_CALL                                         !0, 'modify'
         25        SEND_VAL_EX                                              '%2B1+months'
         26        DO_FCALL                                      0          
   11    27        PRE_DEC                                                  !3
   12    28        IS_SMALLER_OR_EQUAL                                      0, !3
         29      > JMPNZ                                                    ~20, ->17
         30    > > RETURN                                                   1

Generated using Vulcan Logic Dumper, using php 8.0.0


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