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<?php /** * WordPress Core functions. */ function wp_json_encode( $data, $options = 0, $depth = 512 ) { // Simulate JSON encoding failure to trigger the rest of the code. $json = false; //json_encode( $data, $options, $depth ); // If json_encode() was successful, no need to do more sanity checking. if ( false !== $json ) { return $json; } try { $data = _wp_json_sanity_check( $data, $depth ); } catch ( Exception $e ) { return false; } return json_encode( $data, $options, $depth ); } function _wp_json_sanity_check( $data, $depth ) { if ( $depth < 0 ) { throw new Exception( 'Reached depth limit' ); } if ( is_array( $data ) ) { $output = array(); foreach ( $data as $id => $el ) { // Don't forget to sanitize the ID! if ( is_string( $id ) ) { $clean_id = _wp_json_convert_string( $id ); } else { $clean_id = $id; } // Check the element type, so that we're only recursing if we really have to. if ( is_array( $el ) || is_object( $el ) ) { $output[ $clean_id ] = _wp_json_sanity_check( $el, $depth - 1 ); } elseif ( is_string( $el ) ) { $output[ $clean_id ] = _wp_json_convert_string( $el ); } else { $output[ $clean_id ] = $el; } } } elseif ( is_object( $data ) ) { $output = new stdClass; foreach ( $data as $id => $el ) { if ( is_string( $id ) ) { $clean_id = _wp_json_convert_string( $id ); } else { $clean_id = $id; } if ( is_array( $el ) || is_object( $el ) ) { $output->$clean_id = _wp_json_sanity_check( $el, $depth - 1 ); } elseif ( is_string( $el ) ) { $output->$clean_id = _wp_json_convert_string( $el ); } else { $output->$clean_id = $el; } } } elseif ( is_string( $data ) ) { return _wp_json_convert_string( $data ); } else { return $data; } var_dump( $output ); return $output; } function _wp_json_convert_string( $string ) { // Simulate failed by returning false. if ( isset( $GLOBALS['simulate_fail'] ) ) { return false; } $encoding = mb_detect_encoding( $string, mb_detect_order(), true ); if ( $encoding ) { return mb_convert_encoding( $string, 'UTF-8', $encoding ); } else { return mb_convert_encoding( $string, 'UTF-8', 'UTF-8' ); } } /** * Run some tests. */ echo "\n***** Test with an array. ****\n"; $data = array( 'blogname' => array( 'value' => 'Test', ), ); echo "\n***** When succeeds ****\n"; $json = wp_json_encode( $data ); echo "JSON = {$json}\n"; echo "\n***** When fails ****\n"; $GLOBALS['simulate_fail'] = true; $json = wp_json_encode( $data ); echo "JSON = {$json}\n";
Finding entry points
Branch analysis from position: 0
1 jumps found. (Code = 62) Position 1 = -2
filename:       /in/n4qT6
function name:  (null)
number of ops:  23
compiled vars:  !0 = $data, !1 = $json
line      #* E I O op                               fetch          ext  return  operands
-----------------------------------------------------------------------------------------
   99     0  E >   ECHO                                                         '%0A%2A%2A%2A%2A%2A+Test+with+an+array.+%2A%2A%2A%2A%0A'
  101     1        ASSIGN                                                       !0, <array>
  107     2        ECHO                                                         '%0A%2A%2A%2A%2A%2A+When+succeeds+%2A%2A%2A%2A%0A'
  108     3        INIT_FCALL                                                   'wp_json_encode'
          4        SEND_VAR                                                     !0
          5        DO_FCALL                                          0  $3      
          6        ASSIGN                                                       !1, $3
  109     7        ROPE_INIT                                         3  ~6      'JSON+%3D+'
          8        ROPE_ADD                                          1  ~6      ~6, !1
          9        ROPE_END                                          2  ~5      ~6, '%0A'
         10        ECHO                                                         ~5
  112    11        ECHO                                                         '%0A%2A%2A%2A%2A%2A+When+fails+%2A%2A%2A%2A%0A'
  113    12        FETCH_W                          global              $8      'simulate_fail'
         13        ASSIGN                                                       $8, <true>
  114    14        INIT_FCALL                                                   'wp_json_encode'
         15        SEND_VAR                                                     !0
         16        DO_FCALL                                          0  $10     
         17        ASSIGN                                                       !1, $10
  115    18        ROPE_INIT                                         3  ~13     'JSON+%3D+'
         19        ROPE_ADD                                          1  ~13     ~13, !1
         20        ROPE_END                                          2  ~12     ~13, '%0A'
         21        ECHO                                                         ~12
         22      > RETURN                                                       1

Function wp_json_encode:
Finding entry points
Branch analysis from position: 0
2 jumps found. (Code = 43) Position 1 = 6, Position 2 = 7
Branch analysis from position: 6
1 jumps found. (Code = 62) Position 1 = -2
Branch analysis from position: 7
1 jumps found. (Code = 42) Position 1 = 15
Branch analysis from position: 15
1 jumps found. (Code = 62) Position 1 = -2
Found catch point at position: 13
Branch analysis from position: 13
2 jumps found. (Code = 107) Position 1 = 14, Position 2 = -2
Branch analysis from position: 14
1 jumps found. (Code = 62) Position 1 = -2
filename:       /in/n4qT6
function name:  wp_json_encode
number of ops:  22
compiled vars:  !0 = $data, !1 = $options, !2 = $depth, !3 = $json, !4 = $e
line      #* E I O op                               fetch          ext  return  operands
-----------------------------------------------------------------------------------------
    7     0  E >   RECV                                                 !0      
          1        RECV_INIT                                            !1      0
          2        RECV_INIT                                            !2      512
    9     3        ASSIGN                                                       !3, <false>
   12     4        TYPE_CHECK                                      1018          !3
          5      > JMPZ                                                         ~6, ->7
   13     6    > > RETURN                                                       !3
   17     7    >   INIT_FCALL_BY_NAME                                           '_wp_json_sanity_check'
          8        SEND_VAR_EX                                                  !0
          9        SEND_VAR_EX                                                  !2
         10        DO_FCALL                                          0  $7      
         11        ASSIGN                                                       !0, $7
         12      > JMP                                                          ->15
   18    13  E > > CATCH                                           last         'Exception'
   19    14    > > RETURN                                                       <false>
   22    15    >   INIT_FCALL                                                   'json_encode'
         16        SEND_VAR                                                     !0
         17        SEND_VAR                                                     !1
         18        SEND_VAR                                                     !2
         19        DO_ICALL                                             $9      
         20      > RETURN                                                       $9
   23    21*     > RETURN                                                       null

End of function wp_json_encode

Function _wp_json_sanity_check:
Finding entry points
Branch analysis from position: 0
2 jumps found. (Code = 43) Position 1 = 4, Position 2 = 8
Branch analysis from position: 4
1 jumps found. (Code = 108) Position 1 = -2
Branch analysis from position: 8
2 jumps found. (Code = 43) Position 1 = 10, Position 2 = 48
Branch analysis from position: 10
2 jumps found. (Code = 77) Position 1 = 12, Position 2 = 46
Branch analysis from position: 12
2 jumps found. (Code = 78) Position 1 = 13, Position 2 = 46
Branch analysis from position: 13
2 jumps found. (Code = 43) Position 1 = 16, Position 2 = 21
Branch analysis from position: 16
1 jumps found. (Code = 42) Position 1 = 22
Branch analysis from position: 22
2 jumps found. (Code = 47) Position 1 = 24, Position 2 = 26
Branch analysis from position: 24
2 jumps found. (Code = 43) Position 1 = 27, Position 2 = 35
Branch analysis from position: 27
1 jumps found. (Code = 42) Position 1 = 45
Branch analysis from position: 45
1 jumps found. (Code = 42) Position 1 = 12
Branch analysis from position: 12
Branch analysis from position: 35
2 jumps found. (Code = 43) Position 1 = 37, Position 2 = 43
Branch analysis from position: 37
1 jumps found. (Code = 42) Position 1 = 45
Branch analysis from position: 45
Branch analysis from position: 43
1 jumps found. (Code = 42) Position 1 = 12
Branch analysis from position: 12
Branch analysis from position: 26
Branch analysis from position: 21
2 jumps found. (Code = 47) Position 1 = 24, Position 2 = 26
Branch analysis from position: 24
Branch analysis from position: 26
Branch analysis from position: 46
1 jumps found. (Code = 42) Position 1 = 98
Branch analysis from position: 98
1 jumps found. (Code = 62) Position 1 = -2
Branch analysis from position: 46
Branch analysis from position: 48
2 jumps found. (Code = 43) Position 1 = 50, Position 2 = 90
Branch analysis from position: 50
2 jumps found. (Code = 77) Position 1 = 54, Position 2 = 88
Branch analysis from position: 54
2 jumps found. (Code = 78) Position 1 = 55, Position 2 = 88
Branch analysis from position: 55
2 jumps found. (Code = 43) Position 1 = 58, Position 2 = 63
Branch analysis from position: 58
1 jumps found. (Code = 42) Position 1 = 64
Branch analysis from position: 64
2 jumps found. (Code = 47) Position 1 = 66, Position 2 = 68
Branch analysis from position: 66
2 jumps found. (Code = 43) Position 1 = 69, Position 2 = 77
Branch analysis from position: 69
1 jumps found. (Code = 42) Position 1 = 87
Branch analysis from position: 87
1 jumps found. (Code = 42) Position 1 = 54
Branch analysis from position: 54
Branch analysis from position: 77
2 jumps found. (Code = 43) Position 1 = 79, Position 2 = 85
Branch analysis from position: 79
1 jumps found. (Code = 42) Position 1 = 87
Branch analysis from position: 87
Branch analysis from position: 85
1 jumps found. (Code = 42) Position 1 = 54
Branch analysis from position: 54
Branch analysis from position: 68
Branch analysis from position: 63
2 jumps found. (Code = 47) Position 1 = 66, Position 2 = 68
Branch analysis from position: 66
Branch analysis from position: 68
Branch analysis from position: 88
1 jumps found. (Code = 42) Position 1 = 98
Branch analysis from position: 98
Branch analysis from position: 88
Branch analysis from position: 90
2 jumps found. (Code = 43) Position 1 = 92, Position 2 = 97
Branch analysis from position: 92
1 jumps found. (Code = 62) Position 1 = -2
Branch analysis from position: 97
1 jumps found. (Code = 62) Position 1 = -2
filename:       /in/n4qT6
function name:  _wp_json_sanity_check
number of ops:  103
compiled vars:  !0 = $data, !1 = $depth, !2 = $output, !3 = $el, !4 = $id, !5 = $clean_id
line      #* E I O op                               fetch          ext  return  operands
-----------------------------------------------------------------------------------------
   25     0  E >   RECV                                                 !0      
          1        RECV                                                 !1      
   26     2        IS_SMALLER                                                   !1, 0
          3      > JMPZ                                                         ~6, ->8
   27     4    >   NEW                                                  $7      'Exception'
          5        SEND_VAL_EX                                                  'Reached+depth+limit'
          6        DO_FCALL                                          0          
          7      > THROW                                             0          $7
   30     8    >   TYPE_CHECK                                      128          !0
          9      > JMPZ                                                         ~9, ->48
   31    10    >   ASSIGN                                                       !2, <array>
   32    11      > FE_RESET_R                                           $11     !0, ->46
         12    > > FE_FETCH_R                                           ~12     $11, !3, ->46
         13    >   ASSIGN                                                       !4, ~12
   34    14        TYPE_CHECK                                       64          !4
         15      > JMPZ                                                         ~14, ->21
   35    16    >   INIT_FCALL_BY_NAME                                           '_wp_json_convert_string'
         17        SEND_VAR_EX                                                  !4
         18        DO_FCALL                                          0  $15     
         19        ASSIGN                                                       !5, $15
   34    20      > JMP                                                          ->22
   37    21    >   ASSIGN                                                       !5, !4
   41    22    >   TYPE_CHECK                                      128  ~18     !3
         23      > JMPNZ_EX                                             ~18     ~18, ->26
         24    >   TYPE_CHECK                                      256  ~19     !3
         25        BOOL                                                 ~18     ~19
         26    > > JMPZ                                                         ~18, ->35
   42    27    >   INIT_FCALL_BY_NAME                                           '_wp_json_sanity_check'
         28        SEND_VAR_EX                                                  !3
         29        SUB                                                  ~21     !1, 1
         30        SEND_VAL_EX                                                  ~21
         31        DO_FCALL                                          0  $22     
         32        ASSIGN_DIM                                                   !2, !5
         33        OP_DATA                                                      $22
   41    34      > JMP                                                          ->45
   43    35    >   TYPE_CHECK                                       64          !3
         36      > JMPZ                                                         ~23, ->43
   44    37    >   INIT_FCALL_BY_NAME                                           '_wp_json_convert_string'
         38        SEND_VAR_EX                                                  !3
         39        DO_FCALL                                          0  $25     
         40        ASSIGN_DIM                                                   !2, !5
         41        OP_DATA                                                      $25
   43    42      > JMP                                                          ->45
   46    43    >   ASSIGN_DIM                                                   !2, !5
         44        OP_DATA                                                      !3
   32    45    > > JMP                                                          ->12
         46    >   FE_FREE                                                      $11
   30    47      > JMP                                                          ->98
   49    48    >   TYPE_CHECK                                      256          !0
         49      > JMPZ                                                         ~27, ->90
   50    50    >   NEW                                                  $28     'stdClass'
         51        DO_FCALL                                          0          
         52        ASSIGN                                                       !2, $28
   51    53      > FE_RESET_R                                           $31     !0, ->88
         54    > > FE_FETCH_R                                           ~32     $31, !3, ->88
         55    >   ASSIGN                                                       !4, ~32
   52    56        TYPE_CHECK                                       64          !4
         57      > JMPZ                                                         ~34, ->63
   53    58    >   INIT_FCALL_BY_NAME                                           '_wp_json_convert_string'
         59        SEND_VAR_EX                                                  !4
         60        DO_FCALL                                          0  $35     
         61        ASSIGN                                                       !5, $35
   52    62      > JMP                                                          ->64
   55    63    >   ASSIGN                                                       !5, !4
   58    64    >   TYPE_CHECK                                      128  ~38     !3
         65      > JMPNZ_EX                                             ~38     ~38, ->68
         66    >   TYPE_CHECK                                      256  ~39     !3
         67        BOOL                                                 ~38     ~39
         68    > > JMPZ                                                         ~38, ->77
   59    69    >   INIT_FCALL_BY_NAME                                           '_wp_json_sanity_check'
         70        SEND_VAR_EX                                                  !3
         71        SUB                                                  ~41     !1, 1
         72        SEND_VAL_EX                                                  ~41
         73        DO_FCALL                                          0  $42     
         74        ASSIGN_OBJ                                                   !2, !5
         75        OP_DATA                                                      $42
   58    76      > JMP                                                          ->87
   60    77    >   TYPE_CHECK                                       64          !3
         78      > JMPZ                                                         ~43, ->85
   61    79    >   INIT_FCALL_BY_NAME                                           '_wp_json_convert_string'
         80        SEND_VAR_EX                                                  !3
         81        DO_FCALL                                          0  $45     
         82        ASSIGN_OBJ                                                   !2, !5
         83        OP_DATA                                                      $45
   60    84      > JMP                                                          ->87
   63    85    >   ASSIGN_OBJ                                                   !2, !5
         86        OP_DATA                                                      !3
   51    87    > > JMP                                                          ->54
         88    >   FE_FREE                                                      $31
   49    89      > JMP                                                          ->98
   66    90    >   TYPE_CHECK                                       64          !0
         91      > JMPZ                                                         ~47, ->97
   67    92    >   INIT_FCALL_BY_NAME                                           '_wp_json_convert_string'
         93        SEND_VAR_EX                                                  !0
         94        DO_FCALL                                          0  $48     
         95      > RETURN                                                       $48
   66    96*       JMP                                                          ->98
   69    97    > > RETURN                                                       !0
   73    98    >   INIT_FCALL                                                   'var_dump'
         99        SEND_VAR                                                     !2
        100        DO_ICALL                                                     
   75   101      > RETURN                                                       !2
   76   102*     > RETURN                                                       null

End of function _wp_json_sanity_check

Function _wp_json_convert_string:
Finding entry points
Branch analysis from position: 0
2 jumps found. (Code = 43) Position 1 = 3, Position 2 = 4
Branch analysis from position: 3
1 jumps found. (Code = 62) Position 1 = -2
Branch analysis from position: 4
2 jumps found. (Code = 43) Position 1 = 13, Position 2 = 20
Branch analysis from position: 13
1 jumps found. (Code = 62) Position 1 = -2
Branch analysis from position: 20
1 jumps found. (Code = 62) Position 1 = -2
filename:       /in/n4qT6
function name:  _wp_json_convert_string
number of ops:  27
compiled vars:  !0 = $string, !1 = $encoding
line      #* E I O op                               fetch          ext  return  operands
-----------------------------------------------------------------------------------------
   78     0  E >   RECV                                                 !0      
   80     1        ISSET_ISEMPTY_VAR                                 2          'simulate_fail'
          2      > JMPZ                                                         ~2, ->4
   81     3    > > RETURN                                                       <false>
   84     4    >   INIT_FCALL                                                   'mb_detect_encoding'
          5        SEND_VAR                                                     !0
          6        INIT_FCALL                                                   'mb_detect_order'
          7        DO_ICALL                                             $3      
          8        SEND_VAR                                                     $3
          9        SEND_VAL                                                     <true>
         10        DO_ICALL                                             $4      
         11        ASSIGN                                                       !1, $4
   85    12      > JMPZ                                                         !1, ->20
   86    13    >   INIT_FCALL                                                   'mb_convert_encoding'
         14        SEND_VAR                                                     !0
         15        SEND_VAL                                                     'UTF-8'
         16        SEND_VAR                                                     !1
         17        DO_ICALL                                             $6      
         18      > RETURN                                                       $6
   85    19*       JMP                                                          ->26
   88    20    >   INIT_FCALL                                                   'mb_convert_encoding'
         21        SEND_VAR                                                     !0
         22        SEND_VAL                                                     'UTF-8'
         23        SEND_VAL                                                     'UTF-8'
         24        DO_ICALL                                             $7      
         25      > RETURN                                                       $7
   91    26*     > RETURN                                                       null

End of function _wp_json_convert_string

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