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<?php var_dump(filter_var(idn_to_ascii( 'fred@bücher.ch'), FILTER_VALIDATE_EMAIL));
Finding entry points
Branch analysis from position: 0
1 jumps found. (Code = 62) Position 1 = -2
filename:       /in/THEZj
function name:  (null)
number of ops:  11
compiled vars:  none
line      #* E I O op                               fetch          ext  return  operands
-----------------------------------------------------------------------------------------
    3     0  E >   INIT_FCALL                                                   'var_dump'
          1        INIT_FCALL                                                   'filter_var'
          2        INIT_FCALL_BY_NAME                                           'idn_to_ascii'
          3        SEND_VAL_EX                                                  'fred%40b%C3%BCcher.ch'
          4        DO_FCALL                                          0  $0      
          5        SEND_VAR                                                     $0
          6        SEND_VAL                                                     274
          7        DO_ICALL                                             $1      
          8        SEND_VAR                                                     $1
          9        DO_ICALL                                                     
         10      > RETURN                                                       1

Generated using Vulcan Logic Dumper, using php 8.5.0


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