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<?php $text = "abc9def"; $pattern = '/[^a-zA-Z]/'; if (preg_match($pattern, $text)){ print("no"); }else{ print("yes"); }
Finding entry points
Branch analysis from position: 0
2 jumps found. (Code = 43) Position 1 = 7, Position 2 = 9
Branch analysis from position: 7
1 jumps found. (Code = 42) Position 1 = 10
Branch analysis from position: 10
1 jumps found. (Code = 62) Position 1 = -2
Branch analysis from position: 9
1 jumps found. (Code = 62) Position 1 = -2
filename:       /in/2hTFA
function name:  (null)
number of ops:  11
compiled vars:  !0 = $text, !1 = $pattern
line      #* E I O op                           fetch          ext  return  operands
-------------------------------------------------------------------------------------
    2     0  E >   ASSIGN                                                   !0, 'abc9def'
    3     1        ASSIGN                                                   !1, '%2F%5B%5Ea-zA-Z%5D%2F'
    5     2        INIT_FCALL                                               'preg_match'
          3        SEND_VAR                                                 !1
          4        SEND_VAR                                                 !0
          5        DO_ICALL                                         $4      
          6      > JMPZ                                                     $4, ->9
    6     7    >   ECHO                                                     'no'
          8      > JMP                                                      ->10
    8     9    >   ECHO                                                     'yes'
    9    10    > > RETURN                                                   1

Generated using Vulcan Logic Dumper, using php 8.0.0


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