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<?php $list = new SplDoublyLinkedList; $ret = $list->unserialize('i:0;:s:3:"foo";:s:3:"bar";'); var_dump($ret); var_dump($list);
Finding entry points
Branch analysis from position: 0
1 jumps found. (Code = 62) Position 1 = -2
filename:       /in/gWjfK
function name:  (null)
number of ops:  14
compiled vars:  !0 = $list, !1 = $ret
line      #* E I O op                           fetch          ext  return  operands
-------------------------------------------------------------------------------------
    2     0  E >   NEW                                              $2      'SplDoublyLinkedList'
          1        DO_FCALL                                      0          
          2        ASSIGN                                                   !0, $2
    3     3        INIT_METHOD_CALL                                         !0, 'unserialize'
          4        SEND_VAL_EX                                              'i%3A0%3B%3As%3A3%3A%22foo%22%3B%3As%3A3%3A%22bar%22%3B'
          5        DO_FCALL                                      0  $5      
          6        ASSIGN                                                   !1, $5
    4     7        INIT_FCALL                                               'var_dump'
          8        SEND_VAR                                                 !1
          9        DO_ICALL                                                 
    5    10        INIT_FCALL                                               'var_dump'
         11        SEND_VAR                                                 !0
         12        DO_ICALL                                                 
         13      > RETURN                                                   1

Generated using Vulcan Logic Dumper, using php 8.0.0


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