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<?php $datetime = new \DateTimeImmutable( '2770-01-00 15:00:00.000000', new \DateTimeZone('UTC') ); \var_dump($datetime->format('j') === '0'); \var_dump($datetime);
Finding entry points
Branch analysis from position: 0
1 jumps found. (Code = 62) Position 1 = -2
filename:       /in/nA0p0
function name:  (null)
number of ops:  19
compiled vars:  !0 = $datetime
line      #* E I O op                           fetch          ext  return  operands
-------------------------------------------------------------------------------------
    3     0  E >   NEW                                              $1      'DateTimeImmutable'
    4     1        SEND_VAL_EX                                              '2770-01-00+15%3A00%3A00.000000'
    5     2        NEW                                              $2      'DateTimeZone'
          3        SEND_VAL_EX                                              'UTC'
          4        DO_FCALL                                      0          
          5        SEND_VAR_NO_REF_EX                                       $2
          6        DO_FCALL                                      0          
    3     7        ASSIGN                                                   !0, $1
    7     8        INIT_FCALL                                               'var_dump'
          9        INIT_METHOD_CALL                                         !0, 'format'
         10        SEND_VAL_EX                                              'j'
         11        DO_FCALL                                      0  $6      
         12        IS_IDENTICAL                                     ~7      $6, '0'
         13        SEND_VAL                                                 ~7
         14        DO_ICALL                                                 
    8    15        INIT_FCALL                                               'var_dump'
         16        SEND_VAR                                                 !0
         17        DO_ICALL                                                 
         18      > RETURN                                                   1

Generated using Vulcan Logic Dumper, using php 8.0.0


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