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<?php date_default_timezone_set('UTC'); var_dump(DateTime::createFromFormat('u U', '123456 123456790')->format('U u'));
Finding entry points
Branch analysis from position: 0
1 jumps found. (Code = 62) Position 1 = -2
filename:       /in/vGsdM
function name:  (null)
number of ops:  14
compiled vars:  none
line      #* E I O op                           fetch          ext  return  operands
-------------------------------------------------------------------------------------
    3     0  E >   INIT_FCALL                                               'date_default_timezone_set'
          1        SEND_VAL                                                 'UTC'
          2        DO_ICALL                                                 
    5     3        INIT_FCALL                                               'var_dump'
          4        INIT_STATIC_METHOD_CALL                                  'DateTime', 'createFromFormat'
          5        SEND_VAL                                                 'u+U'
          6        SEND_VAL                                                 '123456+123456790'
          7        DO_FCALL                                      0  $1      
          8        INIT_METHOD_CALL                                         $1, 'format'
          9        SEND_VAL_EX                                              'U+u'
         10        DO_FCALL                                      0  $2      
         11        SEND_VAR                                                 $2
         12        DO_ICALL                                                 
         13      > RETURN                                                   1

Generated using Vulcan Logic Dumper, using php 8.0.0


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