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<?php $stream = fopen('php://temp', 'r+'); fwrite($stream, ''); fseek($stream, 0); var_dump($stream);
Finding entry points
Branch analysis from position: 0
1 jumps found. (Code = 62) Position 1 = -2
filename:       /in/HT3Qn
function name:  (null)
number of ops:  17
compiled vars:  !0 = $stream
line      #* E I O op                           fetch          ext  return  operands
-------------------------------------------------------------------------------------
    3     0  E >   INIT_FCALL                                               'fopen'
          1        SEND_VAL                                                 'php%3A%2F%2Ftemp'
          2        SEND_VAL                                                 'r%2B'
          3        DO_ICALL                                         $1      
          4        ASSIGN                                                   !0, $1
    4     5        INIT_FCALL                                               'fwrite'
          6        SEND_VAR                                                 !0
          7        SEND_VAL                                                 ''
          8        DO_ICALL                                                 
    5     9        INIT_FCALL                                               'fseek'
         10        SEND_VAR                                                 !0
         11        SEND_VAL                                                 0
         12        DO_ICALL                                                 
    7    13        INIT_FCALL                                               'var_dump'
         14        SEND_VAR                                                 !0
         15        DO_ICALL                                                 
         16      > RETURN                                                   1

Generated using Vulcan Logic Dumper, using php 8.0.0


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