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<?php var_dump(filter_var('"very.(),:;<>[]\".VERY.\"very@\\ \"very\".unusual"@strange.example.com', FILTER_VALIDATE_EMAIL));
Finding entry points
Branch analysis from position: 0
1 jumps found. (Code = 62) Position 1 = -2
filename:       /in/pTI55
function name:  (null)
number of ops:  8
compiled vars:  none
line      #* E I O op                           fetch          ext  return  operands
-------------------------------------------------------------------------------------
    2     0  E >   INIT_FCALL                                               'var_dump'
          1        INIT_FCALL                                               'filter_var'
          2        SEND_VAL                                                 '%22very.%28%29%2C%3A%3B%3C%3E%5B%5D%5C%22.VERY.%5C%22very%40%5C+%5C%22very%5C%22.unusual%22%40strange.example.com'
          3        SEND_VAL                                                 274
          4        DO_ICALL                                         $0      
          5        SEND_VAR                                                 $0
          6        DO_ICALL                                                 
          7      > RETURN                                                   1

Generated using Vulcan Logic Dumper, using php 8.0.0


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