3v4l.org

run code in 300+ PHP versions simultaneously
<?php $stream = fopen('data://text/plain,cccc', 'w+'); fwrite($stream, 'data'); rewind($stream); var_dump(fread($stream, 5)); fclose($stream);
Finding entry points
Branch analysis from position: 0
1 jumps found. (Code = 62) Position 1 = -2
filename:       /in/9HKq6
function name:  (null)
number of ops:  23
compiled vars:  !0 = $stream
line      #* E I O op                           fetch          ext  return  operands
-------------------------------------------------------------------------------------
    3     0  E >   INIT_FCALL                                               'fopen'
          1        SEND_VAL                                                 'data%3A%2F%2Ftext%2Fplain%2Ccccc'
          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                                                 'data'
          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                                                 5
         16        DO_ICALL                                         $5      
         17        SEND_VAR                                                 $5
         18        DO_ICALL                                                 
    7    19        INIT_FCALL                                               'fclose'
         20        SEND_VAR                                                 !0
         21        DO_ICALL                                                 
         22      > RETURN                                                   1

Generated using Vulcan Logic Dumper, using php 8.0.0


preferences:
180.24 ms | 1395 KiB | 25 Q