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<?php $adv = 'P123'; if ($adv &! preg_match("/^P/", $licnum)){ echo "yes"; }else{ echo "No"; }
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/Q0Cvg
function name:  (null)
number of ops:  12
compiled vars:  !0 = $adv, !1 = $licnum
line      #* E I O op                           fetch          ext  return  operands
-------------------------------------------------------------------------------------
    2     0  E >   ASSIGN                                                   !0, 'P123'
    3     1        INIT_FCALL                                               'preg_match'
          2        SEND_VAL                                                 '%2F%5EP%2F'
          3        SEND_VAR                                                 !1
          4        DO_ICALL                                         $3      
          5        BOOL_NOT                                         ~4      $3
          6        BW_AND                                           ~5      !0, ~4
          7      > JMPZ                                                     ~5, ->10
    4     8    >   ECHO                                                     'yes'
          9      > JMP                                                      ->11
    6    10    >   ECHO                                                     'No'
    7    11    > > RETURN                                                   1

Generated using Vulcan Logic Dumper, using php 8.0.0


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