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<?php $begin = new DateTime( '2015-01-01' ); $end = new DateTime( '2017-12-26' ); $interval = new DateInterval('P6M'); $period = new DatePeriod($begin, $interval, $end); foreach ( $period as $dt ) $endDate = (new $dt)->add($interval)->sub(new DateInterval('PT1D')); echo sprintf("%s-%s\n", $dt->format("Y-m-d"), $endDate->format("Y-m-d"));
Finding entry points
Branch analysis from position: 0
2 jumps found. (Code = 77) Position 1 = 19, Position 2 = 34
Branch analysis from position: 19
2 jumps found. (Code = 78) Position 1 = 20, Position 2 = 34
Branch analysis from position: 20
1 jumps found. (Code = 42) Position 1 = 19
Branch analysis from position: 19
Branch analysis from position: 34
1 jumps found. (Code = 62) Position 1 = -2
Branch analysis from position: 34
filename:       /in/k9vpk
function name:  (null)
number of ops:  48
compiled vars:  !0 = $begin, !1 = $end, !2 = $interval, !3 = $period, !4 = $dt, !5 = $endDate
line      #* E I O op                           fetch          ext  return  operands
-------------------------------------------------------------------------------------
    3     0  E >   NEW                                              $6      'DateTime'
          1        SEND_VAL_EX                                              '2015-01-01'
          2        DO_FCALL                                      0          
          3        ASSIGN                                                   !0, $6
    4     4        NEW                                              $9      'DateTime'
          5        SEND_VAL_EX                                              '2017-12-26'
          6        DO_FCALL                                      0          
          7        ASSIGN                                                   !1, $9
    6     8        NEW                                              $12     'DateInterval'
          9        SEND_VAL_EX                                              'P6M'
         10        DO_FCALL                                      0          
         11        ASSIGN                                                   !2, $12
    8    12        NEW                                              $15     'DatePeriod'
         13        SEND_VAR_EX                                              !0
         14        SEND_VAR_EX                                              !2
         15        SEND_VAR_EX                                              !1
         16        DO_FCALL                                      0          
         17        ASSIGN                                                   !3, $15
   10    18      > FE_RESET_R                                       $18     !3, ->34
         19    > > FE_FETCH_R                                               $18, !4, ->34
   11    20    >   FETCH_CLASS                                   0  $19     !4
         21        NEW                                              $20     $19
         22        DO_FCALL                                      0          
         23        INIT_METHOD_CALL                                         $20, 'add'
         24        SEND_VAR_EX                                              !2
         25        DO_FCALL                                      0  $22     
         26        INIT_METHOD_CALL                                         $22, 'sub'
         27        NEW                                              $23     'DateInterval'
         28        SEND_VAL_EX                                              'PT1D'
         29        DO_FCALL                                      0          
         30        SEND_VAR_NO_REF_EX                                       $23
         31        DO_FCALL                                      0  $25     
         32        ASSIGN                                                   !5, $25
   10    33      > JMP                                                      ->19
         34    >   FE_FREE                                                  $18
   12    35        INIT_FCALL                                               'sprintf'
         36        SEND_VAL                                                 '%25s-%25s%0A'
         37        INIT_METHOD_CALL                                         !4, 'format'
         38        SEND_VAL_EX                                              'Y-m-d'
         39        DO_FCALL                                      0  $27     
         40        SEND_VAR                                                 $27
         41        INIT_METHOD_CALL                                         !5, 'format'
         42        SEND_VAL_EX                                              'Y-m-d'
         43        DO_FCALL                                      0  $28     
         44        SEND_VAR                                                 $28
         45        DO_ICALL                                         $29     
         46        ECHO                                                     $29
         47      > RETURN                                                   1

Generated using Vulcan Logic Dumper, using php 8.0.0


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