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<?php $b = preg_match('/\D/', '768486') !== 1; var_dump($b); $b = preg_match('/\D/', '768d486') !== 1; var_dump($b);
Finding entry points
Branch analysis from position: 0
1 jumps found. (Code = 62) Position 1 = -2
filename:       /in/8iXMO
function name:  (null)
number of ops:  13
compiled vars:  !0 = $b
line      #* E I O op                               fetch          ext  return  operands
-----------------------------------------------------------------------------------------
    3     0  E >   FRAMELESS_ICALL_2                preg_match          ~1      '%2F%5CD%2F', '768486'
          1        IS_NOT_IDENTICAL                                     ~2      ~1, 1
          2        ASSIGN                                                       !0, ~2
    4     3        INIT_FCALL                                                   'var_dump'
          4        SEND_VAR                                                     !0
          5        DO_ICALL                                                     
    6     6        FRAMELESS_ICALL_2                preg_match          ~5      '%2F%5CD%2F', '768d486'
          7        IS_NOT_IDENTICAL                                     ~6      ~5, 1
          8        ASSIGN                                                       !0, ~6
    7     9        INIT_FCALL                                                   'var_dump'
         10        SEND_VAR                                                     !0
         11        DO_ICALL                                                     
         12      > RETURN                                                       1

Generated using Vulcan Logic Dumper, using php 8.5.0


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