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<?php $year = 2012; $month = 1; $day = -5; $date = \DateTimeImmutable::createFromFormat('Y-m-d', "{$year}-{$month}-{$day}"); var_dump($date->format('Y-m-d H:i:s'));
Finding entry points
Branch analysis from position: 0
1 jumps found. (Code = 62) Position 1 = -2
filename:       /in/foHPp
function name:  (null)
number of ops:  20
compiled vars:  !0 = $year, !1 = $month, !2 = $day, !3 = $date
line      #* E I O op                           fetch          ext  return  operands
-------------------------------------------------------------------------------------
    3     0  E >   ASSIGN                                                   !0, 2012
    4     1        ASSIGN                                                   !1, 1
    5     2        ASSIGN                                                   !2, -5
    7     3        INIT_STATIC_METHOD_CALL                                  'DateTimeImmutable', 'createFromFormat'
          4        SEND_VAL                                                 'Y-m-d'
          5        ROPE_INIT                                     5  ~8      !0
          6        ROPE_ADD                                      1  ~8      ~8, '-'
          7        ROPE_ADD                                      2  ~8      ~8, !1
          8        ROPE_ADD                                      3  ~8      ~8, '-'
          9        ROPE_END                                      4  ~7      ~8, !2
         10        SEND_VAL                                                 ~7
         11        DO_FCALL                                      0  $11     
         12        ASSIGN                                                   !3, $11
    9    13        INIT_FCALL                                               'var_dump'
         14        INIT_METHOD_CALL                                         !3, 'format'
         15        SEND_VAL_EX                                              'Y-m-d+H%3Ai%3As'
         16        DO_FCALL                                      0  $13     
         17        SEND_VAR                                                 $13
         18        DO_ICALL                                                 
         19      > RETURN                                                   1

Generated using Vulcan Logic Dumper, using php 8.0.0


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