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<?php $di = DateInterval::createFromDateString('now'); //var_dump($di); var_dump($di->date_string ?? 'hoge');
Finding entry points
Branch analysis from position: 0
1 jumps found. (Code = 62) Position 1 = -2
filename:       /in/8s8fW
function name:  (null)
number of ops:  11
compiled vars:  !0 = $di
line      #* E I O op                               fetch          ext  return  operands
-----------------------------------------------------------------------------------------
    3     0  E >   INIT_STATIC_METHOD_CALL                                      'DateInterval', 'createFromDateString'
          1        SEND_VAL                                                     'now'
          2        DO_FCALL                                          0  $1      
          3        ASSIGN                                                       !0, $1
    5     4        INIT_FCALL                                                   'var_dump'
          5        FETCH_OBJ_IS                                         ~3      !0, 'date_string'
          6        COALESCE                                             ~4      ~3
          7        QM_ASSIGN                                            ~4      'hoge'
          8        SEND_VAL                                                     ~4
          9        DO_ICALL                                                     
         10      > RETURN                                                       1

Generated using Vulcan Logic Dumper, using php 8.5.0


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