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<?php ini_set('unserialize_callback_func', 'mycallback'); function mycallback($classname) { echo $classname; } $serialized_text = 'O:8:"MyClass1":0:{}'; $result = unserialize($serialized_text); var_dump($result);
Finding entry points
Branch analysis from position: 0
1 jumps found. (Code = 62) Position 1 = -2
filename:       /in/5tH65
function name:  (null)
number of ops:  13
compiled vars:  !0 = $serialized_text, !1 = $result
line      #* E I O op                           fetch          ext  return  operands
-------------------------------------------------------------------------------------
    2     0  E >   INIT_FCALL                                               'ini_set'
          1        SEND_VAL                                                 'unserialize_callback_func'
          2        SEND_VAL                                                 'mycallback'
          3        DO_ICALL                                                 
    7     4        ASSIGN                                                   !0, 'O%3A8%3A%22MyClass1%22%3A0%3A%7B%7D'
    9     5        INIT_FCALL                                               'unserialize'
          6        SEND_VAR                                                 !0
          7        DO_ICALL                                         $4      
          8        ASSIGN                                                   !1, $4
   10     9        INIT_FCALL                                               'var_dump'
         10        SEND_VAR                                                 !1
         11        DO_ICALL                                                 
         12      > RETURN                                                   1

Function mycallback:
Finding entry points
Branch analysis from position: 0
1 jumps found. (Code = 62) Position 1 = -2
filename:       /in/5tH65
function name:  mycallback
number of ops:  3
compiled vars:  !0 = $classname
line      #* E I O op                           fetch          ext  return  operands
-------------------------------------------------------------------------------------
    3     0  E >   RECV                                             !0      
    5     1        ECHO                                                     !0
    6     2      > RETURN                                                   null

End of function mycallback

Generated using Vulcan Logic Dumper, using php 8.0.0


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