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<?php $start = new DateTime('2010-12-02'); $start->modify('first day of this month'); $end = new DateTime('2012-05-06'); $end->modify('first day of next month'); $interval = DateInterval::createFromDateString('1 month'); $period = new DatePeriod($start, $interval, $end); var_dump($period); die(); foreach ($period as $dt) { echo $dt->format("Y-m") . PHP_EOL; }
Finding entry points
Branch analysis from position: 0
1 jumps found. (Code = 79) Position 1 = -2
filename:       /in/3NNbR
function name:  (null)
number of ops:  38
compiled vars:  !0 = $start, !1 = $end, !2 = $interval, !3 = $period, !4 = $dt
line      #* E I O op                           fetch          ext  return  operands
-------------------------------------------------------------------------------------
    2     0  E >   NEW                                              $5      'DateTime'
          1        SEND_VAL_EX                                              '2010-12-02'
          2        DO_FCALL                                      0          
          3        ASSIGN                                                   !0, $5
    3     4        INIT_METHOD_CALL                                         !0, 'modify'
          5        SEND_VAL_EX                                              'first+day+of+this+month'
          6        DO_FCALL                                      0          
    4     7        NEW                                              $9      'DateTime'
          8        SEND_VAL_EX                                              '2012-05-06'
          9        DO_FCALL                                      0          
         10        ASSIGN                                                   !1, $9
    5    11        INIT_METHOD_CALL                                         !1, 'modify'
         12        SEND_VAL_EX                                              'first+day+of+next+month'
         13        DO_FCALL                                      0          
    6    14        INIT_STATIC_METHOD_CALL                                  'DateInterval', 'createFromDateString'
         15        SEND_VAL                                                 '1+month'
         16        DO_FCALL                                      0  $13     
         17        ASSIGN                                                   !2, $13
    7    18        NEW                                              $15     'DatePeriod'
         19        SEND_VAR_EX                                              !0
         20        SEND_VAR_EX                                              !2
         21        SEND_VAR_EX                                              !1
         22        DO_FCALL                                      0          
         23        ASSIGN                                                   !3, $15
    9    24        INIT_FCALL                                               'var_dump'
         25        SEND_VAR                                                 !3
         26        DO_ICALL                                                 
   10    27      > EXIT                                                     
   11    28*       FE_RESET_R                                       $19     !3, ->36
         29*       FE_FETCH_R                                               $19, !4, ->36
   12    30*       INIT_METHOD_CALL                                         !4, 'format'
         31*       SEND_VAL_EX                                              'Y-m'
         32*       DO_FCALL                                      0  $20     
         33*       CONCAT                                           ~21     $20, '%0A'
         34*       ECHO                                                     ~21
   11    35*       JMP                                                      ->29
         36*       FE_FREE                                                  $19
   13    37*     > RETURN                                                   1

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