3v4l.org

run code in 300+ PHP versions simultaneously
<?php $email = 'johnsnow@ヒキワリ.ナットウ.com'; $email = idn_to_ascii($email); echo $email . "\n"; $email = str_replace('xn--', '', $email); if (filter_var($email, FILTER_VALIDATE_EMAIL)) { echo 'valid'; } else { echo 'not valid'; }
Finding entry points
Branch analysis from position: 0
2 jumps found. (Code = 43) Position 1 = 18, Position 2 = 20
Branch analysis from position: 18
1 jumps found. (Code = 42) Position 1 = 21
Branch analysis from position: 21
1 jumps found. (Code = 62) Position 1 = -2
Branch analysis from position: 20
1 jumps found. (Code = 62) Position 1 = -2
filename:       /in/c95Hc
function name:  (null)
number of ops:  22
compiled vars:  !0 = $email
line      #* E I O op                           fetch          ext  return  operands
-------------------------------------------------------------------------------------
    3     0  E >   ASSIGN                                                   !0, 'johnsnow%40%E3%83%92%E3%82%AD%E3%83%AF%E3%83%AA.%E3%83%8A%E3%83%83%E3%83%88%E3%82%A6.com'
    4     1        INIT_FCALL_BY_NAME                                       'idn_to_ascii'
          2        SEND_VAR_EX                                              !0
          3        DO_FCALL                                      0  $2      
          4        ASSIGN                                                   !0, $2
    5     5        CONCAT                                           ~4      !0, '%0A'
          6        ECHO                                                     ~4
    7     7        INIT_FCALL                                               'str_replace'
          8        SEND_VAL                                                 'xn--'
          9        SEND_VAL                                                 ''
         10        SEND_VAR                                                 !0
         11        DO_ICALL                                         $5      
         12        ASSIGN                                                   !0, $5
    8    13        INIT_FCALL                                               'filter_var'
         14        SEND_VAR                                                 !0
         15        SEND_VAL                                                 274
         16        DO_ICALL                                         $7      
         17      > JMPZ                                                     $7, ->20
    9    18    >   ECHO                                                     'valid'
         19      > JMP                                                      ->21
   11    20    >   ECHO                                                     'not+valid'
   12    21    > > RETURN                                                   1

Generated using Vulcan Logic Dumper, using php 8.0.0


preferences:
153.82 ms | 1395 KiB | 17 Q