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<?php $t=htmlspecialchars_decode("&#60b&#62vist&#60/b&#62"); echo $t; echo str_replace(array("&#60b&#62", "&#60/b&#62"),"@",$t);
Finding entry points
Branch analysis from position: 0
1 jumps found. (Code = 62) Position 1 = -2
filename:       /in/jLfu6
function name:  (null)
number of ops:  12
compiled vars:  !0 = $t
line      #* E I O op                           fetch          ext  return  operands
-------------------------------------------------------------------------------------
    3     0  E >   INIT_FCALL                                               'htmlspecialchars_decode'
          1        SEND_VAL                                                 '%26%2360b%26%2362vist%26%2360%2Fb%26%2362'
          2        DO_ICALL                                         $1      
          3        ASSIGN                                                   !0, $1
    4     4        ECHO                                                     !0
    5     5        INIT_FCALL                                               'str_replace'
          6        SEND_VAL                                                 <array>
          7        SEND_VAL                                                 '%40'
          8        SEND_VAR                                                 !0
          9        DO_ICALL                                         $3      
         10        ECHO                                                     $3
         11      > RETURN                                                   1

Generated using Vulcan Logic Dumper, using php 8.0.0


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