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<?php $regEx = "/^[0-9]*$/"; $pass= "Y"; $fail= "N"; $value = 1; $value = 0; $value = "true"; $value = "false"; $value = true; $value = false; //returns N //$value = "hello"; //returns N //$value = 32452345; //returns N if ((preg_match($regEx, $value) && ($value == 1 || $value == 0)) || $value === true || $value === false) { echo $pass; } else{ echo $fail; }
Finding entry points
Branch analysis from position: 0
2 jumps found. (Code = 46) Position 1 = 14, Position 2 = 19
Branch analysis from position: 14
2 jumps found. (Code = 47) Position 1 = 16, Position 2 = 18
Branch analysis from position: 16
2 jumps found. (Code = 47) Position 1 = 20, Position 2 = 22
Branch analysis from position: 20
2 jumps found. (Code = 47) Position 1 = 23, Position 2 = 25
Branch analysis from position: 23
2 jumps found. (Code = 43) Position 1 = 26, Position 2 = 28
Branch analysis from position: 26
1 jumps found. (Code = 42) Position 1 = 29
Branch analysis from position: 29
1 jumps found. (Code = 62) Position 1 = -2
Branch analysis from position: 28
1 jumps found. (Code = 62) Position 1 = -2
Branch analysis from position: 25
Branch analysis from position: 22
Branch analysis from position: 18
Branch analysis from position: 19
filename:       /in/J5XjW
function name:  (null)
number of ops:  30
compiled vars:  !0 = $regEx, !1 = $pass, !2 = $fail, !3 = $value
line      #* E I O op                           fetch          ext  return  operands
-------------------------------------------------------------------------------------
    5     0  E >   ASSIGN                                                   !0, '%2F%5E%5B0-9%5D%2A%24%2F'
    6     1        ASSIGN                                                   !1, 'Y'
    7     2        ASSIGN                                                   !2, 'N'
    9     3        ASSIGN                                                   !3, 1
   10     4        ASSIGN                                                   !3, 0
   11     5        ASSIGN                                                   !3, 'true'
   12     6        ASSIGN                                                   !3, 'false'
   13     7        ASSIGN                                                   !3, <true>
   14     8        ASSIGN                                                   !3, <false>
   18     9        INIT_FCALL                                               'preg_match'
         10        SEND_VAR                                                 !0
         11        SEND_VAR                                                 !3
         12        DO_ICALL                                         $13     
         13      > JMPZ_EX                                          ~14     $13, ->19
         14    >   IS_EQUAL                                         ~15     !3, 1
         15      > JMPNZ_EX                                         ~15     ~15, ->18
         16    >   IS_EQUAL                                         ~16     !3, 0
         17        BOOL                                             ~15     ~16
         18    >   BOOL                                             ~14     ~15
         19    > > JMPNZ_EX                                         ~14     ~14, ->22
         20    >   TYPE_CHECK                                    8  ~17     !3
         21        BOOL                                             ~14     ~17
         22    > > JMPNZ_EX                                         ~14     ~14, ->25
         23    >   TYPE_CHECK                                    4  ~18     !3
         24        BOOL                                             ~14     ~18
         25    > > JMPZ                                                     ~14, ->28
   19    26    >   ECHO                                                     !1
         27      > JMP                                                      ->29
   22    28    >   ECHO                                                     !2
   23    29    > > RETURN                                                   1

Generated using Vulcan Logic Dumper, using php 8.0.0


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