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<?php $foo = '2011-1-31 00:00:00'; $date = new DateTime($foo); $date->modify('1 month'); var_dump($date); $new_month = $date->format('m'); $new_day = $date->format('d'); $new_year = $date->format('Y'); $last_month_timestamp = mktime(0, 0, 0, $new_month, $new_day, $new_year); $num_days_last_month = date('t', $last_month_timestamp); $days_offset = $num_days_last_month - $new_day; $date = $date->modify('' . $days_offset . ' days'); var_dump($date);
Finding entry points
Branch analysis from position: 0
1 jumps found. (Code = 62) Position 1 = -2
filename:       /in/dCYvv
function name:  (null)
number of ops:  49
compiled vars:  !0 = $foo, !1 = $date, !2 = $new_month, !3 = $new_day, !4 = $new_year, !5 = $last_month_timestamp, !6 = $num_days_last_month, !7 = $days_offset
line      #* E I O op                           fetch          ext  return  operands
-------------------------------------------------------------------------------------
    2     0  E >   ASSIGN                                                   !0, '2011-1-31+00%3A00%3A00'
    3     1        NEW                                              $9      'DateTime'
          2        SEND_VAR_EX                                              !0
          3        DO_FCALL                                      0          
          4        ASSIGN                                                   !1, $9
    5     5        INIT_METHOD_CALL                                         !1, 'modify'
          6        SEND_VAL_EX                                              '1+month'
          7        DO_FCALL                                      0          
    6     8        INIT_FCALL                                               'var_dump'
          9        SEND_VAR                                                 !1
         10        DO_ICALL                                                 
    8    11        INIT_METHOD_CALL                                         !1, 'format'
         12        SEND_VAL_EX                                              'm'
         13        DO_FCALL                                      0  $14     
         14        ASSIGN                                                   !2, $14
    9    15        INIT_METHOD_CALL                                         !1, 'format'
         16        SEND_VAL_EX                                              'd'
         17        DO_FCALL                                      0  $16     
         18        ASSIGN                                                   !3, $16
   10    19        INIT_METHOD_CALL                                         !1, 'format'
         20        SEND_VAL_EX                                              'Y'
         21        DO_FCALL                                      0  $18     
         22        ASSIGN                                                   !4, $18
   12    23        INIT_FCALL                                               'mktime'
         24        SEND_VAL                                                 0
         25        SEND_VAL                                                 0
         26        SEND_VAL                                                 0
         27        SEND_VAR                                                 !2
         28        SEND_VAR                                                 !3
         29        SEND_VAR                                                 !4
         30        DO_ICALL                                         $20     
         31        ASSIGN                                                   !5, $20
   13    32        INIT_FCALL                                               'date'
         33        SEND_VAL                                                 't'
         34        SEND_VAR                                                 !5
         35        DO_ICALL                                         $22     
         36        ASSIGN                                                   !6, $22
   14    37        SUB                                              ~24     !6, !3
         38        ASSIGN                                                   !7, ~24
   15    39        INIT_METHOD_CALL                                         !1, 'modify'
         40        CONCAT                                           ~26     '', !7
         41        CONCAT                                           ~27     ~26, '+days'
         42        SEND_VAL_EX                                              ~27
         43        DO_FCALL                                      0  $28     
         44        ASSIGN                                                   !1, $28
   17    45        INIT_FCALL                                               'var_dump'
         46        SEND_VAR                                                 !1
         47        DO_ICALL                                                 
         48      > RETURN                                                   1

Generated using Vulcan Logic Dumper, using php 8.0.0


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