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<?php $stream = fopen("php://temp", "r+"); fwrite($stream, "0123456789"); rewind($stream); var_dump(fread($stream, 1024), ftell($stream), feof($stream));
Finding entry points
Branch analysis from position: 0
1 jumps found. (Code = 62) Position 1 = -2
filename:       /in/YJRWQ
function name:  (null)
number of ops:  28
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                                                 '0123456789'
          8        DO_ICALL                                                 
    5     9        INIT_FCALL                                               'rewind'
         10        SEND_VAR                                                 !0
         11        DO_ICALL                                                 
    6    12        INIT_FCALL                                               'var_dump'
         13        INIT_FCALL                                               'fread'
         14        SEND_VAR                                                 !0
         15        SEND_VAL                                                 1024
         16        DO_ICALL                                         $5      
         17        SEND_VAR                                                 $5
         18        INIT_FCALL                                               'ftell'
         19        SEND_VAR                                                 !0
         20        DO_ICALL                                         $6      
         21        SEND_VAR                                                 $6
         22        INIT_FCALL                                               'feof'
         23        SEND_VAR                                                 !0
         24        DO_ICALL                                         $7      
         25        SEND_VAR                                                 $7
         26        DO_ICALL                                                 
         27      > RETURN                                                   1

Generated using Vulcan Logic Dumper, using php 8.0.0


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