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<?php $a = "<script> alert('hi')</script>"; //$b= filter_var($a, FILTER_SANITIZE_STRING); $b= filter_var($a, FILTER_VALIDATE_STRING); echo $b; ?>
Finding entry points
Branch analysis from position: 0
1 jumps found. (Code = 62) Position 1 = -2
filename:       /in/sC4Pg
function name:  (null)
number of ops:  9
compiled vars:  !0 = $a, !1 = $b
line      #* E I O op                           fetch          ext  return  operands
-------------------------------------------------------------------------------------
    3     0  E >   ASSIGN                                                   !0, '%3Cscript%3E+alert%28%27hi%27%29%3C%2Fscript%3E'
    5     1        INIT_FCALL                                               'filter_var'
          2        SEND_VAR                                                 !0
          3        FETCH_CONSTANT                                   ~3      'FILTER_VALIDATE_STRING'
          4        SEND_VAL                                                 ~3
          5        DO_ICALL                                         $4      
          6        ASSIGN                                                   !1, $4
    6     7        ECHO                                                     !1
    7     8      > RETURN                                                   1

Generated using Vulcan Logic Dumper, using php 8.0.0


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