3v4l.org

run code in 500+ PHP versions simultaneously
<?php function read(resource $res): void {} read(fopen('php://temp', 'rw'));
Finding entry points
Branch analysis from position: 0
1 jumps found. (Code = 62) Position 1 = -2
filename:       /in/S7GRg
function name:  (null)
number of ops:  8
compiled vars:  none
line      #* E I O op                               fetch          ext  return  operands
-----------------------------------------------------------------------------------------
    5     0  E >   INIT_FCALL                                                   'read'
          1        INIT_FCALL                                                   'fopen'
          2        SEND_VAL                                                     'php%3A%2F%2Ftemp'
          3        SEND_VAL                                                     'rw'
          4        DO_ICALL                                             $0      
          5        SEND_VAR                                                     $0
          6        DO_FCALL                                          0          
          7      > RETURN                                                       1

Function read:
Finding entry points
Branch analysis from position: 0
1 jumps found. (Code = 62) Position 1 = -2
filename:       /in/S7GRg
function name:  read
number of ops:  2
compiled vars:  !0 = $res
line      #* E I O op                               fetch          ext  return  operands
-----------------------------------------------------------------------------------------
    3     0  E >   RECV                                                 !0      
          1      > RETURN                                                       null

End of function read

Generated using Vulcan Logic Dumper, using php 8.5.0


preferences:
153.94 ms | 1952 KiB | 15 Q