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<?php $legit_id = pack("CCC", ord('3'), 0, 38); var_dump(check_input_data($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/ZJtFW
function name:  (null)
number of ops:  15
compiled vars:  !0 = $legit_id
line      #* E I O op                           fetch          ext  return  operands
-------------------------------------------------------------------------------------
    3     0  E >   INIT_FCALL                                               'pack'
          1        SEND_VAL                                                 'CCC'
          2        SEND_VAL                                                 51
          3        SEND_VAL                                                 0
          4        SEND_VAL                                                 38
          5        DO_ICALL                                         $1      
          6        ASSIGN                                                   !0, $1
    4     7        INIT_FCALL                                               'var_dump'
          8        INIT_FCALL_BY_NAME                                       'check_input_data'
          9        SEND_VAR_EX                                              !0
         10        SEND_VAL_EX                                              'int'
         11        DO_FCALL                                      0  $3      
         12        SEND_VAR                                                 $3
         13        DO_ICALL                                                 
   10    14      > RETURN                                                   1

Function check_input_data:
Finding entry points
Branch analysis from position: 0
2 jumps found. (Code = 46) Position 1 = 7, Position 2 = 9
Branch analysis from position: 7
2 jumps found. (Code = 43) Position 1 = 10, Position 2 = 11
Branch analysis from position: 10
1 jumps found. (Code = 62) Position 1 = -2
Branch analysis from position: 11
1 jumps found. (Code = 62) Position 1 = -2
Branch analysis from position: 9
filename:       /in/ZJtFW
function name:  check_input_data
number of ops:  12
compiled vars:  !0 = $data, !1 = $type
line      #* E I O op                           fetch          ext  return  operands
-------------------------------------------------------------------------------------
    6     0  E >   RECV                                             !0      
          1        RECV                                             !1      
    8     2        INIT_FCALL                                               'preg_match'
          3        SEND_VAL                                                 '%2F%5E%5B0-9%5D%7B1%2C10%7D%24%2FD'
          4        SEND_VAR                                                 !0
          5        DO_ICALL                                         $2      
          6      > JMPZ_EX                                          ~3      $2, ->9
          7    >   IS_SMALLER                                       ~4      !0, 2147483647
          8        BOOL                                             ~3      ~4
          9    > > JMPZ                                                     ~3, ->11
    9    10    > > RETURN                                                   <true>
   10    11    > > RETURN                                                   null

End of function check_input_data

Generated using Vulcan Logic Dumper, using php 8.0.0


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