2
if ( ! class_exists( 'Services_JSON' ) ) :
3
/* vim: set expandtab tabstop=4 shiftwidth=4 softtabstop=4: */
5
* Converts to and from JSON format.
7
* JSON (JavaScript Object Notation) is a lightweight data-interchange
8
* format. It is easy for humans to read and write. It is easy for machines
9
* to parse and generate. It is based on a subset of the JavaScript
10
* Programming Language, Standard ECMA-262 3rd Edition - December 1999.
11
* This feature can also be found in Python. JSON is a text format that is
12
* completely language independent but uses conventions that are familiar
13
* to programmers of the C-family of languages, including C, C++, C#, Java,
14
* JavaScript, Perl, TCL, and many others. These properties make JSON an
15
* ideal data-interchange language.
17
* This package provides a simple encoder and decoder for JSON notation. It
18
* is intended for use with client-side Javascript applications that make
19
* use of HTTPRequest to perform server communication functions - data can
20
* be encoded into JSON notation for use in a client-side javascript, or
21
* decoded from incoming Javascript requests. JSON format is native to
22
* Javascript, and can be directly eval()'ed with no further parsing
25
* All strings should be in ASCII or UTF-8 format!
27
* LICENSE: Redistribution and use in source and binary forms, with or
28
* without modification, are permitted provided that the following
29
* conditions are met: Redistributions of source code must retain the
30
* above copyright notice, this list of conditions and the following
31
* disclaimer. Redistributions in binary form must reproduce the above
32
* copyright notice, this list of conditions and the following disclaimer
33
* in the documentation and/or other materials provided with the
36
* THIS SOFTWARE IS PROVIDED ``AS IS'' AND ANY EXPRESS OR IMPLIED
37
* WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF
38
* MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN
39
* NO EVENT SHALL CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT,
40
* INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING,
41
* BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS
42
* OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND
43
* ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR
44
* TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE
45
* USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH
49
* @package Services_JSON
50
* @author Michal Migurski <mike-json@teczno.com>
51
* @author Matt Knapp <mdknapp[at]gmail[dot]com>
52
* @author Brett Stimmerman <brettstimmerman[at]gmail[dot]com>
53
* @copyright 2005 Michal Migurski
54
* @version CVS: $Id: JSON.php 305040 2010-11-02 23:19:03Z alan_k $
55
* @license http://www.opensource.org/licenses/bsd-license.php
56
* @link http://pear.php.net/pepr/pepr-proposal-show.php?id=198
60
* Marker constant for Services_JSON::decode(), used to flag stack state
62
define('SERVICES_JSON_SLICE', 1);
65
* Marker constant for Services_JSON::decode(), used to flag stack state
67
define('SERVICES_JSON_IN_STR', 2);
70
* Marker constant for Services_JSON::decode(), used to flag stack state
72
define('SERVICES_JSON_IN_ARR', 3);
75
* Marker constant for Services_JSON::decode(), used to flag stack state
77
define('SERVICES_JSON_IN_OBJ', 4);
80
* Marker constant for Services_JSON::decode(), used to flag stack state
82
define('SERVICES_JSON_IN_CMT', 5);
85
* Behavior switch for Services_JSON::decode()
87
define('SERVICES_JSON_LOOSE_TYPE', 16);
90
* Behavior switch for Services_JSON::decode()
92
define('SERVICES_JSON_SUPPRESS_ERRORS', 32);
95
* Behavior switch for Services_JSON::decode()
97
define('SERVICES_JSON_USE_TO_JSON', 64);
100
* Converts to and from JSON format.
102
* Brief example of use:
105
* // create a new instance of Services_JSON
106
* $json = new Services_JSON();
108
* // convert a complexe value to JSON notation, and send it to the browser
109
* $value = array('foo', 'bar', array(1, 2, 'baz'), array(3, array(4)));
110
* $output = $json->encode($value);
113
* // prints: ["foo","bar",[1,2,"baz"],[3,[4]]]
115
* // accept incoming POST data, assumed to be in JSON notation
116
* $input = file_get_contents('php://input', 1000000);
117
* $value = $json->decode($input);
123
* constructs a new JSON instance
125
* @param int $use object behavior flags; combine with boolean-OR
128
* - SERVICES_JSON_LOOSE_TYPE: loose typing.
129
* "{...}" syntax creates associative arrays
130
* instead of objects in decode().
131
* - SERVICES_JSON_SUPPRESS_ERRORS: error suppression.
132
* Values which can't be encoded (e.g. resources)
133
* appear as NULL instead of throwing errors.
134
* By default, a deeply-nested resource will
135
* bubble up with an error, so all return values
136
* from encode() should be checked with isError()
137
* - SERVICES_JSON_USE_TO_JSON: call toJSON when serializing objects
138
* It serializes the return value from the toJSON call rather
139
* than the object it'self, toJSON can return associative arrays,
140
* strings or numbers, if you return an object, make sure it does
141
* not have a toJSON method, otherwise an error will occur.
143
function Services_JSON($use = 0)
146
$this->_mb_strlen = function_exists('mb_strlen');
147
$this->_mb_convert_encoding = function_exists('mb_convert_encoding');
148
$this->_mb_substr = function_exists('mb_substr');
150
// private - cache the mbstring lookup results..
151
var $_mb_strlen = false;
152
var $_mb_substr = false;
153
var $_mb_convert_encoding = false;
156
* convert a string from one UTF-16 char to one UTF-8 char
158
* Normally should be handled by mb_convert_encoding, but
159
* provides a slower PHP-only method for installations
160
* that lack the multibye string extension.
162
* @param string $utf16 UTF-16 character
163
* @return string UTF-8 character
166
function utf162utf8($utf16)
168
// oh please oh please oh please oh please oh please
169
if($this->_mb_convert_encoding) {
170
return mb_convert_encoding($utf16, 'UTF-8', 'UTF-16');
173
$bytes = (ord($utf16{0}) << 8) | ord($utf16{1});
176
case ((0x7F & $bytes) == $bytes):
177
// this case should never be reached, because we are in ASCII range
178
// see: http://www.cl.cam.ac.uk/~mgk25/unicode.html#utf-8
179
return chr(0x7F & $bytes);
181
case (0x07FF & $bytes) == $bytes:
182
// return a 2-byte UTF-8 character
183
// see: http://www.cl.cam.ac.uk/~mgk25/unicode.html#utf-8
184
return chr(0xC0 | (($bytes >> 6) & 0x1F))
185
. chr(0x80 | ($bytes & 0x3F));
187
case (0xFFFF & $bytes) == $bytes:
188
// return a 3-byte UTF-8 character
189
// see: http://www.cl.cam.ac.uk/~mgk25/unicode.html#utf-8
190
return chr(0xE0 | (($bytes >> 12) & 0x0F))
191
. chr(0x80 | (($bytes >> 6) & 0x3F))
192
. chr(0x80 | ($bytes & 0x3F));
195
// ignoring UTF-32 for now, sorry
200
* convert a string from one UTF-8 char to one UTF-16 char
202
* Normally should be handled by mb_convert_encoding, but
203
* provides a slower PHP-only method for installations
204
* that lack the multibye string extension.
206
* @param string $utf8 UTF-8 character
207
* @return string UTF-16 character
210
function utf82utf16($utf8)
212
// oh please oh please oh please oh please oh please
213
if($this->_mb_convert_encoding) {
214
return mb_convert_encoding($utf8, 'UTF-16', 'UTF-8');
217
switch($this->strlen8($utf8)) {
219
// this case should never be reached, because we are in ASCII range
220
// see: http://www.cl.cam.ac.uk/~mgk25/unicode.html#utf-8
224
// return a UTF-16 character from a 2-byte UTF-8 char
225
// see: http://www.cl.cam.ac.uk/~mgk25/unicode.html#utf-8
226
return chr(0x07 & (ord($utf8{0}) >> 2))
227
. chr((0xC0 & (ord($utf8{0}) << 6))
228
| (0x3F & ord($utf8{1})));
231
// return a UTF-16 character from a 3-byte UTF-8 char
232
// see: http://www.cl.cam.ac.uk/~mgk25/unicode.html#utf-8
233
return chr((0xF0 & (ord($utf8{0}) << 4))
234
| (0x0F & (ord($utf8{1}) >> 2)))
235
. chr((0xC0 & (ord($utf8{1}) << 6))
236
| (0x7F & ord($utf8{2})));
239
// ignoring UTF-32 for now, sorry
244
* encodes an arbitrary variable into JSON format (and sends JSON Header)
246
* @param mixed $var any number, boolean, string, array, or object to be encoded.
247
* see argument 1 to Services_JSON() above for array-parsing behavior.
248
* if var is a strng, note that encode() always expects it
249
* to be in ASCII or UTF-8 format!
251
* @return mixed JSON string representation of input var or an error if a problem occurs
254
function encode($var)
256
header('Content-type: application/json');
257
return $this->encodeUnsafe($var);
260
* encodes an arbitrary variable into JSON format without JSON Header - warning - may allow XSS!!!!)
262
* @param mixed $var any number, boolean, string, array, or object to be encoded.
263
* see argument 1 to Services_JSON() above for array-parsing behavior.
264
* if var is a strng, note that encode() always expects it
265
* to be in ASCII or UTF-8 format!
267
* @return mixed JSON string representation of input var or an error if a problem occurs
270
function encodeUnsafe($var)
272
// see bug #16908 - regarding numeric locale printing
273
$lc = setlocale(LC_NUMERIC, 0);
274
setlocale(LC_NUMERIC, 'C');
275
$ret = $this->_encode($var);
276
setlocale(LC_NUMERIC, $lc);
281
* PRIVATE CODE that does the work of encodes an arbitrary variable into JSON format
283
* @param mixed $var any number, boolean, string, array, or object to be encoded.
284
* see argument 1 to Services_JSON() above for array-parsing behavior.
285
* if var is a strng, note that encode() always expects it
286
* to be in ASCII or UTF-8 format!
288
* @return mixed JSON string representation of input var or an error if a problem occurs
291
function _encode($var)
294
switch (gettype($var)) {
296
return $var ? 'true' : 'false';
309
// STRINGS ARE EXPECTED TO BE IN ASCII OR UTF-8 FORMAT
311
$strlen_var = $this->strlen8($var);
314
* Iterate over every character in the string,
315
* escaping with a slash or encoding to UTF-8 where necessary
317
for ($c = 0; $c < $strlen_var; ++$c) {
319
$ord_var_c = ord($var{$c});
322
case $ord_var_c == 0x08:
325
case $ord_var_c == 0x09:
328
case $ord_var_c == 0x0A:
331
case $ord_var_c == 0x0C:
334
case $ord_var_c == 0x0D:
338
case $ord_var_c == 0x22:
339
case $ord_var_c == 0x2F:
340
case $ord_var_c == 0x5C:
341
// double quote, slash, slosh
342
$ascii .= '\\'.$var{$c};
345
case (($ord_var_c >= 0x20) && ($ord_var_c <= 0x7F)):
346
// characters U-00000000 - U-0000007F (same as ASCII)
350
case (($ord_var_c & 0xE0) == 0xC0):
351
// characters U-00000080 - U-000007FF, mask 110XXXXX
352
// see http://www.cl.cam.ac.uk/~mgk25/unicode.html#utf-8
353
if ($c+1 >= $strlen_var) {
359
$char = pack('C*', $ord_var_c, ord($var{$c + 1}));
361
$utf16 = $this->utf82utf16($char);
362
$ascii .= sprintf('\u%04s', bin2hex($utf16));
365
case (($ord_var_c & 0xF0) == 0xE0):
366
if ($c+2 >= $strlen_var) {
371
// characters U-00000800 - U-0000FFFF, mask 1110XXXX
372
// see http://www.cl.cam.ac.uk/~mgk25/unicode.html#utf-8
373
$char = pack('C*', $ord_var_c,
377
$utf16 = $this->utf82utf16($char);
378
$ascii .= sprintf('\u%04s', bin2hex($utf16));
381
case (($ord_var_c & 0xF8) == 0xF0):
382
if ($c+3 >= $strlen_var) {
387
// characters U-00010000 - U-001FFFFF, mask 11110XXX
388
// see http://www.cl.cam.ac.uk/~mgk25/unicode.html#utf-8
389
$char = pack('C*', $ord_var_c,
394
$utf16 = $this->utf82utf16($char);
395
$ascii .= sprintf('\u%04s', bin2hex($utf16));
398
case (($ord_var_c & 0xFC) == 0xF8):
399
// characters U-00200000 - U-03FFFFFF, mask 111110XX
400
// see http://www.cl.cam.ac.uk/~mgk25/unicode.html#utf-8
401
if ($c+4 >= $strlen_var) {
406
$char = pack('C*', $ord_var_c,
412
$utf16 = $this->utf82utf16($char);
413
$ascii .= sprintf('\u%04s', bin2hex($utf16));
416
case (($ord_var_c & 0xFE) == 0xFC):
417
if ($c+5 >= $strlen_var) {
422
// characters U-04000000 - U-7FFFFFFF, mask 1111110X
423
// see http://www.cl.cam.ac.uk/~mgk25/unicode.html#utf-8
424
$char = pack('C*', $ord_var_c,
431
$utf16 = $this->utf82utf16($char);
432
$ascii .= sprintf('\u%04s', bin2hex($utf16));
436
return '"'.$ascii.'"';
440
* As per JSON spec if any array key is not an integer
441
* we must treat the the whole array as an object. We
442
* also try to catch a sparsely populated associative
443
* array with numeric keys here because some JS engines
444
* will create an array with empty indexes up to
445
* max_index which can cause memory issues and because
446
* the keys, which may be relevant, will be remapped
449
* As per the ECMA and JSON specification an object may
450
* have any string as a property. Unfortunately due to
451
* a hole in the ECMA specification if the key is a
452
* ECMA reserved word or starts with a digit the
453
* parameter is only accessible using ECMAScript's
457
// treat as a JSON object
458
if (is_array($var) && count($var) && (array_keys($var) !== range(0, sizeof($var) - 1))) {
459
$properties = array_map(array($this, 'name_value'),
463
foreach($properties as $property) {
464
if(Services_JSON::isError($property)) {
469
return '{' . join(',', $properties) . '}';
472
// treat it like a regular array
473
$elements = array_map(array($this, '_encode'), $var);
475
foreach($elements as $element) {
476
if(Services_JSON::isError($element)) {
481
return '[' . join(',', $elements) . ']';
485
// support toJSON methods.
486
if (($this->use & SERVICES_JSON_USE_TO_JSON) && method_exists($var, 'toJSON')) {
487
// this may end up allowing unlimited recursion
488
// so we check the return value to make sure it's not got the same method.
489
$recode = $var->toJSON();
491
if (method_exists($recode, 'toJSON')) {
493
return ($this->use & SERVICES_JSON_SUPPRESS_ERRORS)
495
: new Services_JSON_Error(get_class($var).
496
" toJSON returned an object with a toJSON method.");
500
return $this->_encode( $recode );
503
$vars = get_object_vars($var);
505
$properties = array_map(array($this, 'name_value'),
507
array_values($vars));
509
foreach($properties as $property) {
510
if(Services_JSON::isError($property)) {
515
return '{' . join(',', $properties) . '}';
518
return ($this->use & SERVICES_JSON_SUPPRESS_ERRORS)
520
: new Services_JSON_Error(gettype($var)." can not be encoded as JSON string");
525
* array-walking function for use in generating JSON-formatted name-value pairs
527
* @param string $name name of key to use
528
* @param mixed $value reference to an array element to be encoded
530
* @return string JSON-formatted name-value pair, like '"name":value'
533
function name_value($name, $value)
535
$encoded_value = $this->_encode($value);
537
if(Services_JSON::isError($encoded_value)) {
538
return $encoded_value;
541
return $this->_encode(strval($name)) . ':' . $encoded_value;
545
* reduce a string by removing leading and trailing comments and whitespace
547
* @param $str string string value to strip of comments and whitespace
549
* @return string string value stripped of comments and whitespace
552
function reduce_string($str)
554
$str = preg_replace(array(
556
// eliminate single line comments in '// ...' form
559
// eliminate multi-line comments in '/* ... */' form, at start of string
560
'#^\s*/\*(.+)\*/#Us',
562
// eliminate multi-line comments in '/* ... */' form, at end of string
567
// eliminate extraneous space
572
* decodes a JSON string into appropriate variable
574
* @param string $str JSON-formatted string
576
* @return mixed number, boolean, string, array, or object
577
* corresponding to given JSON input string.
578
* See argument 1 to Services_JSON() above for object-output behavior.
579
* Note that decode() always returns strings
580
* in ASCII or UTF-8 format!
583
function decode($str)
585
$str = $this->reduce_string($str);
587
switch (strtolower($str)) {
600
if (is_numeric($str)) {
601
// Lookie-loo, it's a number
603
// This would work on its own, but I'm trying to be
604
// good about returning integers where appropriate:
605
// return (float)$str;
607
// Return float or int, as appropriate
608
return ((float)$str == (integer)$str)
612
} elseif (preg_match('/^("|\').*(\1)$/s', $str, $m) && $m[1] == $m[2]) {
613
// STRINGS RETURNED IN UTF-8 FORMAT
614
$delim = $this->substr8($str, 0, 1);
615
$chrs = $this->substr8($str, 1, -1);
617
$strlen_chrs = $this->strlen8($chrs);
619
for ($c = 0; $c < $strlen_chrs; ++$c) {
621
$substr_chrs_c_2 = $this->substr8($chrs, $c, 2);
622
$ord_chrs_c = ord($chrs{$c});
625
case $substr_chrs_c_2 == '\b':
629
case $substr_chrs_c_2 == '\t':
633
case $substr_chrs_c_2 == '\n':
637
case $substr_chrs_c_2 == '\f':
641
case $substr_chrs_c_2 == '\r':
646
case $substr_chrs_c_2 == '\\"':
647
case $substr_chrs_c_2 == '\\\'':
648
case $substr_chrs_c_2 == '\\\\':
649
case $substr_chrs_c_2 == '\\/':
650
if (($delim == '"' && $substr_chrs_c_2 != '\\\'') ||
651
($delim == "'" && $substr_chrs_c_2 != '\\"')) {
652
$utf8 .= $chrs{++$c};
656
case preg_match('/\\\u[0-9A-F]{4}/i', $this->substr8($chrs, $c, 6)):
657
// single, escaped unicode character
658
$utf16 = chr(hexdec($this->substr8($chrs, ($c + 2), 2)))
659
. chr(hexdec($this->substr8($chrs, ($c + 4), 2)));
660
$utf8 .= $this->utf162utf8($utf16);
664
case ($ord_chrs_c >= 0x20) && ($ord_chrs_c <= 0x7F):
668
case ($ord_chrs_c & 0xE0) == 0xC0:
669
// characters U-00000080 - U-000007FF, mask 110XXXXX
670
//see http://www.cl.cam.ac.uk/~mgk25/unicode.html#utf-8
671
$utf8 .= $this->substr8($chrs, $c, 2);
675
case ($ord_chrs_c & 0xF0) == 0xE0:
676
// characters U-00000800 - U-0000FFFF, mask 1110XXXX
677
// see http://www.cl.cam.ac.uk/~mgk25/unicode.html#utf-8
678
$utf8 .= $this->substr8($chrs, $c, 3);
682
case ($ord_chrs_c & 0xF8) == 0xF0:
683
// characters U-00010000 - U-001FFFFF, mask 11110XXX
684
// see http://www.cl.cam.ac.uk/~mgk25/unicode.html#utf-8
685
$utf8 .= $this->substr8($chrs, $c, 4);
689
case ($ord_chrs_c & 0xFC) == 0xF8:
690
// characters U-00200000 - U-03FFFFFF, mask 111110XX
691
// see http://www.cl.cam.ac.uk/~mgk25/unicode.html#utf-8
692
$utf8 .= $this->substr8($chrs, $c, 5);
696
case ($ord_chrs_c & 0xFE) == 0xFC:
697
// characters U-04000000 - U-7FFFFFFF, mask 1111110X
698
// see http://www.cl.cam.ac.uk/~mgk25/unicode.html#utf-8
699
$utf8 .= $this->substr8($chrs, $c, 6);
709
} elseif (preg_match('/^\[.*\]$/s', $str) || preg_match('/^\{.*\}$/s', $str)) {
710
// array, or object notation
712
if ($str{0} == '[') {
713
$stk = array(SERVICES_JSON_IN_ARR);
716
if ($this->use & SERVICES_JSON_LOOSE_TYPE) {
717
$stk = array(SERVICES_JSON_IN_OBJ);
720
$stk = array(SERVICES_JSON_IN_OBJ);
721
$obj = new stdClass();
725
array_push($stk, array('what' => SERVICES_JSON_SLICE,
729
$chrs = $this->substr8($str, 1, -1);
730
$chrs = $this->reduce_string($chrs);
733
if (reset($stk) == SERVICES_JSON_IN_ARR) {
742
//print("\nparsing {$chrs}\n");
744
$strlen_chrs = $this->strlen8($chrs);
746
for ($c = 0; $c <= $strlen_chrs; ++$c) {
749
$substr_chrs_c_2 = $this->substr8($chrs, $c, 2);
751
if (($c == $strlen_chrs) || (($chrs{$c} == ',') && ($top['what'] == SERVICES_JSON_SLICE))) {
752
// found a comma that is not inside a string, array, etc.,
753
// OR we've reached the end of the character list
754
$slice = $this->substr8($chrs, $top['where'], ($c - $top['where']));
755
array_push($stk, array('what' => SERVICES_JSON_SLICE, 'where' => ($c + 1), 'delim' => false));
756
//print("Found split at {$c}: ".$this->substr8($chrs, $top['where'], (1 + $c - $top['where']))."\n");
758
if (reset($stk) == SERVICES_JSON_IN_ARR) {
759
// we are in an array, so just push an element onto the stack
760
array_push($arr, $this->decode($slice));
762
} elseif (reset($stk) == SERVICES_JSON_IN_OBJ) {
763
// we are in an object, so figure
764
// out the property name and set an
765
// element in an associative array,
769
if (preg_match('/^\s*(["\'].*[^\\\]["\'])\s*:/Uis', $slice, $parts)) {
771
$key = $this->decode($parts[1]);
772
$val = $this->decode(trim(substr($slice, strlen($parts[0])), ", \t\n\r\0\x0B"));
773
if ($this->use & SERVICES_JSON_LOOSE_TYPE) {
778
} elseif (preg_match('/^\s*(\w+)\s*:/Uis', $slice, $parts)) {
779
// name:value pair, where name is unquoted
781
$val = $this->decode(trim(substr($slice, strlen($parts[0])), ", \t\n\r\0\x0B"));
783
if ($this->use & SERVICES_JSON_LOOSE_TYPE) {
792
} elseif ((($chrs{$c} == '"') || ($chrs{$c} == "'")) && ($top['what'] != SERVICES_JSON_IN_STR)) {
793
// found a quote, and we are not inside a string
794
array_push($stk, array('what' => SERVICES_JSON_IN_STR, 'where' => $c, 'delim' => $chrs{$c}));
795
//print("Found start of string at {$c}\n");
797
} elseif (($chrs{$c} == $top['delim']) &&
798
($top['what'] == SERVICES_JSON_IN_STR) &&
799
(($this->strlen8($this->substr8($chrs, 0, $c)) - $this->strlen8(rtrim($this->substr8($chrs, 0, $c), '\\'))) % 2 != 1)) {
800
// found a quote, we're in a string, and it's not escaped
801
// we know that it's not escaped becase there is _not_ an
802
// odd number of backslashes at the end of the string so far
804
//print("Found end of string at {$c}: ".$this->substr8($chrs, $top['where'], (1 + 1 + $c - $top['where']))."\n");
806
} elseif (($chrs{$c} == '[') &&
807
in_array($top['what'], array(SERVICES_JSON_SLICE, SERVICES_JSON_IN_ARR, SERVICES_JSON_IN_OBJ))) {
808
// found a left-bracket, and we are in an array, object, or slice
809
array_push($stk, array('what' => SERVICES_JSON_IN_ARR, 'where' => $c, 'delim' => false));
810
//print("Found start of array at {$c}\n");
812
} elseif (($chrs{$c} == ']') && ($top['what'] == SERVICES_JSON_IN_ARR)) {
813
// found a right-bracket, and we're in an array
815
//print("Found end of array at {$c}: ".$this->substr8($chrs, $top['where'], (1 + $c - $top['where']))."\n");
817
} elseif (($chrs{$c} == '{') &&
818
in_array($top['what'], array(SERVICES_JSON_SLICE, SERVICES_JSON_IN_ARR, SERVICES_JSON_IN_OBJ))) {
819
// found a left-brace, and we are in an array, object, or slice
820
array_push($stk, array('what' => SERVICES_JSON_IN_OBJ, 'where' => $c, 'delim' => false));
821
//print("Found start of object at {$c}\n");
823
} elseif (($chrs{$c} == '}') && ($top['what'] == SERVICES_JSON_IN_OBJ)) {
824
// found a right-brace, and we're in an object
826
//print("Found end of object at {$c}: ".$this->substr8($chrs, $top['where'], (1 + $c - $top['where']))."\n");
828
} elseif (($substr_chrs_c_2 == '/*') &&
829
in_array($top['what'], array(SERVICES_JSON_SLICE, SERVICES_JSON_IN_ARR, SERVICES_JSON_IN_OBJ))) {
830
// found a comment start, and we are in an array, object, or slice
831
array_push($stk, array('what' => SERVICES_JSON_IN_CMT, 'where' => $c, 'delim' => false));
833
//print("Found start of comment at {$c}\n");
835
} elseif (($substr_chrs_c_2 == '*/') && ($top['what'] == SERVICES_JSON_IN_CMT)) {
836
// found a comment end, and we're in one now
840
for ($i = $top['where']; $i <= $c; ++$i)
841
$chrs = substr_replace($chrs, ' ', $i, 1);
843
//print("Found end of comment at {$c}: ".$this->substr8($chrs, $top['where'], (1 + $c - $top['where']))."\n");
849
if (reset($stk) == SERVICES_JSON_IN_ARR) {
852
} elseif (reset($stk) == SERVICES_JSON_IN_OBJ) {
862
* @todo Ultimately, this should just call PEAR::isError()
864
function isError($data, $code = null)
866
if (class_exists('pear')) {
867
return PEAR::isError($data, $code);
868
} elseif (is_object($data) && (get_class($data) == 'services_json_error' ||
869
is_subclass_of($data, 'services_json_error'))) {
877
* Calculates length of string in bytes
879
* @return integer length
881
function strlen8( $str )
883
if ( $this->_mb_strlen ) {
884
return mb_strlen( $str, "8bit" );
886
return strlen( $str );
890
* Returns part of a string, interpreting $start and $length as number of bytes.
892
* @param integer start
893
* @param integer length
894
* @return integer length
896
function substr8( $string, $start, $length=false )
898
if ( $length === false ) {
899
$length = $this->strlen8( $string ) - $start;
901
if ( $this->_mb_substr ) {
902
return mb_substr( $string, $start, $length, "8bit" );
904
return substr( $string, $start, $length );
909
if (class_exists('PEAR_Error')) {
911
class Services_JSON_Error extends PEAR_Error
913
function Services_JSON_Error($message = 'unknown error', $code = null,
914
$mode = null, $options = null, $userinfo = null)
916
parent::PEAR_Error($message, $code, $mode, $options, $userinfo);
923
* @todo Ultimately, this class shall be descended from PEAR_Error
925
class Services_JSON_Error
927
function Services_JSON_Error($message = 'unknown error', $code = null,
928
$mode = null, $options = null, $userinfo = null)
added
removed
wp-includes/class-json.php
