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<?php var_dump(check_input_data('wello', 'int')); var_dump(check_input_data('123groovybaby', 'int')); var_dump(check_input_data('345', 'int')); $legit_id = "345\0groovybaby"; var_dump(check_input_data($legit_id, 'int')); function check_input_data($data, $type) { if (preg_match('/^[0-9]{1,10}$/D', $data) && $data < 2147483647) return true; }
Finding entry points
Branch analysis from position: 0
1 jumps found. (Code = 62) Position 1 = -2
filename:       /in/vA6vT
function name:  (null)
number of ops:  30
compiled vars:  !0 = $legit_id
line      #* E I O op                               fetch          ext  return  operands
-----------------------------------------------------------------------------------------
    3     0  E >   INIT_FCALL                                                   'var_dump'
          1        INIT_FCALL_BY_NAME                                           'check_input_data'
          2        SEND_VAL_EX                                                  'wello'
          3        SEND_VAL_EX                                                  'int'
          4        DO_FCALL                                          0  $1      
          5        SEND_VAR                                                     $1
          6        DO_ICALL                                                     
    4     7        INIT_FCALL                                                   'var_dump'
          8        INIT_FCALL_BY_NAME                                           'check_input_data'
          9        SEND_VAL_EX                                                  '123groovybaby'
         10        SEND_VAL_EX                                                  'int'
         11        DO_FCALL                                          0  $3      
         12        SEND_VAR                                                     $3
         13        DO_ICALL                                                     
    5    14        INIT_FCALL                                                   'var_dump'
         15        INIT_FCALL_BY_NAME                                           'check_input_data'
         16        SEND_VAL_EX                                                  '345'
         17        SEND_VAL_EX                                                  'int'
         18        DO_FCALL                                          0  $5      
         19        SEND_VAR                                                     $5
         20        DO_ICALL                                                     
    6    21        ASSIGN                                                       !0, '345%00groovybaby'
    7    22        INIT_FCALL                                                   'var_dump'
         23        INIT_FCALL_BY_NAME                                           'check_input_data'
         24        SEND_VAR_EX                                                  !0
         25        SEND_VAL_EX                                                  'int'
         26        DO_FCALL                                          0  $8      
         27        SEND_VAR                                                     $8
         28        DO_ICALL                                                     
   13    29      > RETURN                                                       1

Function check_input_data:
Finding entry points
Branch analysis from position: 0
2 jumps found. (Code = 46) Position 1 = 4, Position 2 = 6
Branch analysis from position: 4
2 jumps found. (Code = 43) Position 1 = 7, Position 2 = 8
Branch analysis from position: 7
1 jumps found. (Code = 62) Position 1 = -2
Branch analysis from position: 8
1 jumps found. (Code = 62) Position 1 = -2
Branch analysis from position: 6
filename:       /in/vA6vT
function name:  check_input_data
number of ops:  9
compiled vars:  !0 = $data, !1 = $type
line      #* E I O op                               fetch          ext  return  operands
-----------------------------------------------------------------------------------------
    9     0  E >   RECV                                                 !0      
          1        RECV                                                 !1      
   11     2        FRAMELESS_ICALL_2                preg_match          ~2      '%2F%5E%5B0-9%5D%7B1%2C10%7D%24%2FD', !0
          3      > JMPZ_EX                                              ~2      ~2, ->6
          4    >   IS_SMALLER                                           ~3      !0, 2147483647
          5        BOOL                                                 ~2      ~3
          6    > > JMPZ                                                         ~2, ->8
   12     7    > > RETURN                                                       <true>
   13     8    > > RETURN                                                       null

End of function check_input_data

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