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<?php for ($i = 1; $i <= 12; $i++) { $date = DateTime::createFromFormat('Y-m-d h:i:s', '2013-' . str_pad($i, '0', STR_PAD_LEFT) . '-29 00:00:00'); var_dump($date->format('Y-m-d'), $date->modify('+1 month')->format('Y-m-d')); }
Finding entry points
Branch analysis from position: 0
1 jumps found. (Code = 42) Position 1 = 28
Branch analysis from position: 28
2 jumps found. (Code = 44) Position 1 = 30, Position 2 = 2
Branch analysis from position: 30
1 jumps found. (Code = 62) Position 1 = -2
Branch analysis from position: 2
2 jumps found. (Code = 44) Position 1 = 30, Position 2 = 2
Branch analysis from position: 30
Branch analysis from position: 2
filename:       /in/cTMpS
function name:  (null)
number of ops:  31
compiled vars:  !0 = $i, !1 = $date
line      #* E I O op                           fetch          ext  return  operands
-------------------------------------------------------------------------------------
    3     0  E >   ASSIGN                                                   !0, 1
          1      > JMP                                                      ->28
    4     2    >   INIT_STATIC_METHOD_CALL                                  'DateTime', 'createFromFormat'
          3        SEND_VAL                                                 'Y-m-d+h%3Ai%3As'
          4        INIT_FCALL                                               'str_pad'
          5        SEND_VAR                                                 !0
          6        SEND_VAL                                                 '0'
          7        SEND_VAL                                                 0
          8        DO_ICALL                                         $3      
          9        CONCAT                                           ~4      '2013-', $3
         10        CONCAT                                           ~5      ~4, '-29+00%3A00%3A00'
         11        SEND_VAL                                                 ~5
         12        DO_FCALL                                      0  $6      
         13        ASSIGN                                                   !1, $6
    5    14        INIT_FCALL                                               'var_dump'
         15        INIT_METHOD_CALL                                         !1, 'format'
         16        SEND_VAL_EX                                              'Y-m-d'
         17        DO_FCALL                                      0  $8      
         18        SEND_VAR                                                 $8
         19        INIT_METHOD_CALL                                         !1, 'modify'
         20        SEND_VAL_EX                                              '%2B1+month'
         21        DO_FCALL                                      0  $9      
         22        INIT_METHOD_CALL                                         $9, 'format'
         23        SEND_VAL_EX                                              'Y-m-d'
         24        DO_FCALL                                      0  $10     
         25        SEND_VAR                                                 $10
         26        DO_ICALL                                                 
    3    27        PRE_INC                                                  !0
         28    >   IS_SMALLER_OR_EQUAL                                      !0, 12
         29      > JMPNZ                                                    ~13, ->2
    6    30    > > RETURN                                                   1

Generated using Vulcan Logic Dumper, using php 8.0.0


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