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<?php var_dump((object)fopen('php://memory', 'r'));
based on sbjdI
Finding entry points
Branch analysis from position: 0
Jump found. Position 1 = -2
filename:       /in/bmRoH
function name:  (null)
number of ops:  9
compiled vars:  none
line     #* E I O op                           fetch          ext  return  operands
-------------------------------------------------------------------------------------
   4     0  E >   INIT_FCALL                                               'var_dump'
         1        INIT_FCALL                                               'fopen'
         2        SEND_VAL                                                 'php%3A%2F%2Fmemory'
         3        SEND_VAL                                                 'r'
         4        DO_ICALL                                         $0      
         5        CAST                                          8  ~1      $0
         6        SEND_VAL                                                 ~1
         7        DO_ICALL                                                 
         8      > RETURN                                                   1

Generated using Vulcan Logic Dumper, using php 7.2.0