3v4l.org

run code in 500+ PHP versions simultaneously
<?php $payload = 'O:11:"ArrayObject":4:{i:0;i:0;i:1;a:2:{i:4;d:0.0;i:1;b:1;}i:2;a:0:{}i:3;s:12:"GlobIterator";}'; $obj = unserialize($payload); // Successful unserialization foreach ($obj as $k => $v) { } // SEGV here
Finding entry points
Branch analysis from position: 0
2 jumps found. (Code = 77) Position 1 = 6, Position 2 = 9
Branch analysis from position: 6
2 jumps found. (Code = 78) Position 1 = 7, Position 2 = 9
Branch analysis from position: 7
1 jumps found. (Code = 42) Position 1 = 6
Branch analysis from position: 6
Branch analysis from position: 9
1 jumps found. (Code = 62) Position 1 = -2
Branch analysis from position: 9
filename:       /in/75H6Y
function name:  (null)
number of ops:  11
compiled vars:  !0 = $payload, !1 = $obj, !2 = $v, !3 = $k
line      #* E I O op                               fetch          ext  return  operands
-----------------------------------------------------------------------------------------
    3     0  E >   ASSIGN                                                       !0, 'O%3A11%3A%22ArrayObject%22%3A4%3A%7Bi%3A0%3Bi%3A0%3Bi%3A1%3Ba%3A2%3A%7Bi%3A4%3Bd%3A0.0%3Bi%3A1%3Bb%3A1%3B%7Di%3A2%3Ba%3A0%3A%7B%7Di%3A3%3Bs%3A12%3A%22GlobIterator%22%3B%7D'
    5     1        INIT_FCALL                                                   'unserialize'
          2        SEND_VAR                                                     !0
          3        DO_ICALL                                             $5      
          4        ASSIGN                                                       !1, $5
    6     5      > FE_RESET_R                                           $7      !1, ->9
          6    > > FE_FETCH_R                                           ~8      $7, !2, ->9
          7    >   ASSIGN                                                       !3, ~8
          8      > JMP                                                          ->6
          9    >   FE_FREE                                                      $7
         10      > RETURN                                                       1

Generated using Vulcan Logic Dumper, using php 8.5.0


preferences:
126.56 ms | 476 KiB | 8 Q