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<?php $local = 'johnsnow123@'; $localExpression = '^[a-z0-9_-]+(?:[a-z0-9._%+-]+)*'; if (mb_eregi($localExpression, $local) === false) { echo 'invalid'; } else { echo 'valid'; }
Finding entry points
Branch analysis from position: 0
2 jumps found. (Code = 43) Position 1 = 8, Position 2 = 10
Branch analysis from position: 8
1 jumps found. (Code = 42) Position 1 = 11
Branch analysis from position: 11
1 jumps found. (Code = 62) Position 1 = -2
Branch analysis from position: 10
1 jumps found. (Code = 62) Position 1 = -2
filename:       /in/UTede
function name:  (null)
number of ops:  12
compiled vars:  !0 = $local, !1 = $localExpression
line      #* E I O op                           fetch          ext  return  operands
-------------------------------------------------------------------------------------
    3     0  E >   ASSIGN                                                   !0, 'johnsnow123%40'
    4     1        ASSIGN                                                   !1, '%5E%5Ba-z0-9_-%5D%2B%28%3F%3A%5Ba-z0-9._%25%2B-%5D%2B%29%2A'
    5     2        INIT_FCALL                                               'mb_eregi'
          3        SEND_VAR                                                 !1
          4        SEND_VAR                                                 !0
          5        DO_ICALL                                         $4      
          6        TYPE_CHECK                                    4          $4
          7      > JMPZ                                                     ~5, ->10
    6     8    >   ECHO                                                     'invalid'
          9      > JMP                                                      ->11
    8    10    >   ECHO                                                     'valid'
    9    11    > > RETURN                                                   1

Generated using Vulcan Logic Dumper, using php 8.0.0


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