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<?php $email = '"<script src=//my.evil.site/is/attacking/u.js></script>"@example.com'; print (bool) filter_var($email, FILTER_VALIDATE_EMAIL);
Finding entry points
Branch analysis from position: 0
1 jumps found. (Code = 62) Position 1 = -2
filename:       /in/JaRFh
function name:  (null)
number of ops:  8
compiled vars:  !0 = $email
line      #* E I O op                           fetch          ext  return  operands
-------------------------------------------------------------------------------------
    3     0  E >   ASSIGN                                                   !0, '%22%3Cscript+src%3D%2F%2Fmy.evil.site%2Fis%2Fattacking%2Fu.js%3E%3C%2Fscript%3E%22%40example.com'
    5     1        INIT_FCALL                                               'filter_var'
          2        SEND_VAR                                                 !0
          3        SEND_VAL                                                 274
          4        DO_ICALL                                         $2      
          5        BOOL                                             ~3      $2
          6        ECHO                                                     ~3
          7      > RETURN                                                   1

Generated using Vulcan Logic Dumper, using php 8.0.0


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