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<?php $stream = fopen('php://memory', 'w+'); fwrite($stream, 'something something'); stream_filter_append($stream, 'zlib.deflate', STREAM_FILTER_READ, ['level' => 6]); rewind($stream); var_dump(fread($stream, 1024));
Finding entry points
Branch analysis from position: 0
1 jumps found. (Code = 62) Position 1 = -2
filename:       /in/RRJ8b
function name:  (null)
number of ops:  26
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%2Fmemory'
          2        SEND_VAL                                                 'w%2B'
          3        DO_ICALL                                         $1      
          4        ASSIGN                                                   !0, $1
    4     5        INIT_FCALL                                               'fwrite'
          6        SEND_VAR                                                 !0
          7        SEND_VAL                                                 'something+something'
          8        DO_ICALL                                                 
    5     9        INIT_FCALL                                               'stream_filter_append'
         10        SEND_VAR                                                 !0
         11        SEND_VAL                                                 'zlib.deflate'
         12        SEND_VAL                                                 1
         13        SEND_VAL                                                 <array>
         14        DO_ICALL                                                 
    6    15        INIT_FCALL                                               'rewind'
         16        SEND_VAR                                                 !0
         17        DO_ICALL                                                 
    7    18        INIT_FCALL                                               'var_dump'
         19        INIT_FCALL                                               'fread'
         20        SEND_VAR                                                 !0
         21        SEND_VAL                                                 1024
         22        DO_ICALL                                         $6      
         23        SEND_VAR                                                 $6
         24        DO_ICALL                                                 
         25      > RETURN                                                   1

Generated using Vulcan Logic Dumper, using php 8.0.0


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