2 /* vim: set expandtab tabstop=4 shiftwidth=4 softtabstop=4: */
4 * Converts to and from JSON format.
6 * JSON (JavaScript Object Notation) is a lightweight data-interchange
7 * format. It is easy for humans to read and write. It is easy for machines
8 * to parse and generate. It is based on a subset of the JavaScript
9 * Programming Language, Standard ECMA-262 3rd Edition - December 1999.
10 * This feature can also be found in Python. JSON is a text format that is
11 * completely language independent but uses conventions that are familiar
12 * to programmers of the C-family of languages, including C, C++, C#, Java,
13 * JavaScript, Perl, TCL, and many others. These properties make JSON an
14 * ideal data-interchange language.
16 * This package provides a simple encoder and decoder for JSON notation. It
17 * is intended for use with client-side Javascript applications that make
18 * use of HTTPRequest to perform server communication functions - data can
19 * be encoded into JSON notation for use in a client-side javascript, or
20 * decoded from incoming Javascript requests. JSON format is native to
21 * Javascript, and can be directly eval()'ed with no further parsing
24 * All strings should be in ASCII or UTF-8 format!
26 * LICENSE: Redistribution and use in source and binary forms, with or
27 * without modification, are permitted provided that the following
28 * conditions are met: Redistributions of source code must retain the
29 * above copyright notice, this list of conditions and the following
30 * disclaimer. Redistributions in binary form must reproduce the above
31 * copyright notice, this list of conditions and the following disclaimer
32 * in the documentation and/or other materials provided with the
35 * THIS SOFTWARE IS PROVIDED ``AS IS'' AND ANY EXPRESS OR IMPLIED
36 * WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF
37 * MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN
38 * NO EVENT SHALL CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT,
39 * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING,
40 * BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS
41 * OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND
42 * ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR
43 * TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE
44 * USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH
48 * @package Services_JSON
49 * @author Michal Migurski <mike-json@teczno.com>
50 * @author Matt Knapp <mdknapp[at]gmail[dot]com>
51 * @author Brett Stimmerman <brettstimmerman[at]gmail[dot]com>
52 * @copyright 2005 Michal Migurski
53 * @version CVS: $Id: JSON.php 288200 2009-09-09 15:41:29Z alan_k $
54 * @license http://www.opensource.org/licenses/bsd-license.php
55 * @link http://pear.php.net/pepr/pepr-proposal-show.php?id=198
59 * Marker constant for Services_JSON::decode(), used to flag stack state
61 define('SERVICES_JSON_SLICE', 1);
64 * Marker constant for Services_JSON::decode(), used to flag stack state
66 define('SERVICES_JSON_IN_STR', 2);
69 * Marker constant for Services_JSON::decode(), used to flag stack state
71 define('SERVICES_JSON_IN_ARR', 3);
74 * Marker constant for Services_JSON::decode(), used to flag stack state
76 define('SERVICES_JSON_IN_OBJ', 4);
79 * Marker constant for Services_JSON::decode(), used to flag stack state
81 define('SERVICES_JSON_IN_CMT', 5);
84 * Behavior switch for Services_JSON::decode()
86 define('SERVICES_JSON_LOOSE_TYPE', 16);
89 * Behavior switch for Services_JSON::decode()
91 define('SERVICES_JSON_SUPPRESS_ERRORS', 32);
94 * Converts to and from JSON format.
96 * Brief example of use:
99 * // create a new instance of Services_JSON
100 * $json = new Services_JSON();
102 * // convert a complexe value to JSON notation, and send it to the browser
103 * $value = array('foo', 'bar', array(1, 2, 'baz'), array(3, array(4)));
104 * $output = $json->encode($value);
107 * // prints: ["foo","bar",[1,2,"baz"],[3,[4]]]
109 * // accept incoming POST data, assumed to be in JSON notation
110 * $input = file_get_contents('php://input', 1000000);
111 * $value = $json->decode($input);
117 * constructs a new JSON instance
119 * @param int $use object behavior flags; combine with boolean-OR
122 * - SERVICES_JSON_LOOSE_TYPE: loose typing.
123 * "{...}" syntax creates associative arrays
124 * instead of objects in decode().
125 * - SERVICES_JSON_SUPPRESS_ERRORS: error suppression.
126 * Values which can't be encoded (e.g. resources)
127 * appear as NULL instead of throwing errors.
128 * By default, a deeply-nested resource will
129 * bubble up with an error, so all return values
130 * from encode() should be checked with isError()
132 function Services_JSON($use = 0)
138 * convert a string from one UTF-16 char to one UTF-8 char
140 * Normally should be handled by mb_convert_encoding, but
141 * provides a slower PHP-only method for installations
142 * that lack the multibye string extension.
144 * @param string $utf16 UTF-16 character
145 * @return string UTF-8 character
148 function utf162utf8($utf16)
150 // oh please oh please oh please oh please oh please
151 if(function_exists('mb_convert_encoding')) {
152 return mb_convert_encoding($utf16, 'UTF-8', 'UTF-16');
155 $bytes = (ord($utf16{0}) << 8) | ord($utf16{1});
158 case ((0x7F & $bytes) == $bytes):
159 // this case should never be reached, because we are in ASCII range
160 // see: http://www.cl.cam.ac.uk/~mgk25/unicode.html#utf-8
161 return chr(0x7F & $bytes);
163 case (0x07FF & $bytes) == $bytes:
164 // return a 2-byte UTF-8 character
165 // see: http://www.cl.cam.ac.uk/~mgk25/unicode.html#utf-8
166 return chr(0xC0 | (($bytes >> 6) & 0x1F))
167 . chr(0x80 | ($bytes & 0x3F));
169 case (0xFFFF & $bytes) == $bytes:
170 // return a 3-byte UTF-8 character
171 // see: http://www.cl.cam.ac.uk/~mgk25/unicode.html#utf-8
172 return chr(0xE0 | (($bytes >> 12) & 0x0F))
173 . chr(0x80 | (($bytes >> 6) & 0x3F))
174 . chr(0x80 | ($bytes & 0x3F));
177 // ignoring UTF-32 for now, sorry
182 * convert a string from one UTF-8 char to one UTF-16 char
184 * Normally should be handled by mb_convert_encoding, but
185 * provides a slower PHP-only method for installations
186 * that lack the multibye string extension.
188 * @param string $utf8 UTF-8 character
189 * @return string UTF-16 character
192 function utf82utf16($utf8)
194 // oh please oh please oh please oh please oh please
195 if(function_exists('mb_convert_encoding')) {
196 return mb_convert_encoding($utf8, 'UTF-16', 'UTF-8');
199 switch(strlen($utf8)) {
201 // this case should never be reached, because we are in ASCII range
202 // see: http://www.cl.cam.ac.uk/~mgk25/unicode.html#utf-8
206 // return a UTF-16 character from a 2-byte UTF-8 char
207 // see: http://www.cl.cam.ac.uk/~mgk25/unicode.html#utf-8
208 return chr(0x07 & (ord($utf8{0}) >> 2))
209 . chr((0xC0 & (ord($utf8{0}) << 6))
210 | (0x3F & ord($utf8{1})));
213 // return a UTF-16 character from a 3-byte UTF-8 char
214 // see: http://www.cl.cam.ac.uk/~mgk25/unicode.html#utf-8
215 return chr((0xF0 & (ord($utf8{0}) << 4))
216 | (0x0F & (ord($utf8{1}) >> 2)))
217 . chr((0xC0 & (ord($utf8{1}) << 6))
218 | (0x7F & ord($utf8{2})));
221 // ignoring UTF-32 for now, sorry
226 * encodes an arbitrary variable into JSON format (and sends JSON Header)
228 * @param mixed $var any number, boolean, string, array, or object to be encoded.
229 * see argument 1 to Services_JSON() above for array-parsing behavior.
230 * if var is a strng, note that encode() always expects it
231 * to be in ASCII or UTF-8 format!
233 * @return mixed JSON string representation of input var or an error if a problem occurs
236 function encode($var)
238 header('Content-type: application/json');
239 return $this->_encode($var);
242 * encodes an arbitrary variable into JSON format without JSON Header - warning - may allow CSS!!!!)
244 * @param mixed $var any number, boolean, string, array, or object to be encoded.
245 * see argument 1 to Services_JSON() above for array-parsing behavior.
246 * if var is a strng, note that encode() always expects it
247 * to be in ASCII or UTF-8 format!
249 * @return mixed JSON string representation of input var or an error if a problem occurs
252 function encodeUnsafe($var)
254 return $this->_encode($var);
257 * PRIVATE CODE that does the work of encodes an arbitrary variable into JSON format
259 * @param mixed $var any number, boolean, string, array, or object to be encoded.
260 * see argument 1 to Services_JSON() above for array-parsing behavior.
261 * if var is a strng, note that encode() always expects it
262 * to be in ASCII or UTF-8 format!
264 * @return mixed JSON string representation of input var or an error if a problem occurs
267 function _encode($var)
270 switch (gettype($var)) {
272 return $var ? 'true' : 'false';
285 // STRINGS ARE EXPECTED TO BE IN ASCII OR UTF-8 FORMAT
287 $strlen_var = strlen($var);
290 * Iterate over every character in the string,
291 * escaping with a slash or encoding to UTF-8 where necessary
293 for ($c = 0; $c < $strlen_var; ++$c) {
295 $ord_var_c = ord($var{$c});
298 case $ord_var_c == 0x08:
301 case $ord_var_c == 0x09:
304 case $ord_var_c == 0x0A:
307 case $ord_var_c == 0x0C:
310 case $ord_var_c == 0x0D:
314 case $ord_var_c == 0x22:
315 case $ord_var_c == 0x2F:
316 case $ord_var_c == 0x5C:
317 // double quote, slash, slosh
318 $ascii .= '\\'.$var{$c};
321 case (($ord_var_c >= 0x20) && ($ord_var_c <= 0x7F)):
322 // characters U-00000000 - U-0000007F (same as ASCII)
326 case (($ord_var_c & 0xE0) == 0xC0):
327 // characters U-00000080 - U-000007FF, mask 110XXXXX
328 // see http://www.cl.cam.ac.uk/~mgk25/unicode.html#utf-8
329 if ($c+1 >= $strlen_var) {
335 $char = pack('C*', $ord_var_c, ord($var{$c + 1}));
337 $utf16 = $this->utf82utf16($char);
338 $ascii .= sprintf('\u%04s', bin2hex($utf16));
341 case (($ord_var_c & 0xF0) == 0xE0):
342 if ($c+2 >= $strlen_var) {
347 // characters U-00000800 - U-0000FFFF, mask 1110XXXX
348 // see http://www.cl.cam.ac.uk/~mgk25/unicode.html#utf-8
349 $char = pack('C*', $ord_var_c,
353 $utf16 = $this->utf82utf16($char);
354 $ascii .= sprintf('\u%04s', bin2hex($utf16));
357 case (($ord_var_c & 0xF8) == 0xF0):
358 if ($c+3 >= $strlen_var) {
363 // characters U-00010000 - U-001FFFFF, mask 11110XXX
364 // see http://www.cl.cam.ac.uk/~mgk25/unicode.html#utf-8
365 $char = pack('C*', $ord_var_c,
370 $utf16 = $this->utf82utf16($char);
371 $ascii .= sprintf('\u%04s', bin2hex($utf16));
374 case (($ord_var_c & 0xFC) == 0xF8):
375 // characters U-00200000 - U-03FFFFFF, mask 111110XX
376 // see http://www.cl.cam.ac.uk/~mgk25/unicode.html#utf-8
377 if ($c+4 >= $strlen_var) {
382 $char = pack('C*', $ord_var_c,
388 $utf16 = $this->utf82utf16($char);
389 $ascii .= sprintf('\u%04s', bin2hex($utf16));
392 case (($ord_var_c & 0xFE) == 0xFC):
393 if ($c+5 >= $strlen_var) {
398 // characters U-04000000 - U-7FFFFFFF, mask 1111110X
399 // see http://www.cl.cam.ac.uk/~mgk25/unicode.html#utf-8
400 $char = pack('C*', $ord_var_c,
407 $utf16 = $this->utf82utf16($char);
408 $ascii .= sprintf('\u%04s', bin2hex($utf16));
412 return '"'.$ascii.'"';
416 * As per JSON spec if any array key is not an integer
417 * we must treat the the whole array as an object. We
418 * also try to catch a sparsely populated associative
419 * array with numeric keys here because some JS engines
420 * will create an array with empty indexes up to
421 * max_index which can cause memory issues and because
422 * the keys, which may be relevant, will be remapped
425 * As per the ECMA and JSON specification an object may
426 * have any string as a property. Unfortunately due to
427 * a hole in the ECMA specification if the key is a
428 * ECMA reserved word or starts with a digit the
429 * parameter is only accessible using ECMAScript's
433 // treat as a JSON object
434 if (is_array($var) && count($var) && (array_keys($var) !== range(0, sizeof($var) - 1))) {
435 $properties = array_map(array($this, 'name_value'),
439 foreach($properties as $property) {
440 if(Services_JSON::isError($property)) {
445 return '{' . join(',', $properties) . '}';
448 // treat it like a regular array
449 $elements = array_map(array($this, '_encode'), $var);
451 foreach($elements as $element) {
452 if(Services_JSON::isError($element)) {
457 return '[' . join(',', $elements) . ']';
460 $vars = get_object_vars($var);
462 $properties = array_map(array($this, 'name_value'),
464 array_values($vars));
466 foreach($properties as $property) {
467 if(Services_JSON::isError($property)) {
472 return '{' . join(',', $properties) . '}';
475 return ($this->use & SERVICES_JSON_SUPPRESS_ERRORS)
477 : new Services_JSON_Error(gettype($var)." can not be encoded as JSON string");
482 * array-walking function for use in generating JSON-formatted name-value pairs
484 * @param string $name name of key to use
485 * @param mixed $value reference to an array element to be encoded
487 * @return string JSON-formatted name-value pair, like '"name":value'
490 function name_value($name, $value)
492 $encoded_value = $this->_encode($value);
494 if(Services_JSON::isError($encoded_value)) {
495 return $encoded_value;
498 return $this->_encode(strval($name)) . ':' . $encoded_value;
502 * reduce a string by removing leading and trailing comments and whitespace
504 * @param $str string string value to strip of comments and whitespace
506 * @return string string value stripped of comments and whitespace
509 function reduce_string($str)
511 $str = preg_replace(array(
513 // eliminate single line comments in '// ...' form
516 // eliminate multi-line comments in '/* ... */' form, at start of string
517 '#^\s*/\*(.+)\*/#Us',
519 // eliminate multi-line comments in '/* ... */' form, at end of string
524 // eliminate extraneous space
529 * decodes a JSON string into appropriate variable
531 * @param string $str JSON-formatted string
533 * @return mixed number, boolean, string, array, or object
534 * corresponding to given JSON input string.
535 * See argument 1 to Services_JSON() above for object-output behavior.
536 * Note that decode() always returns strings
537 * in ASCII or UTF-8 format!
540 function decode($str)
542 $str = $this->reduce_string($str);
544 switch (strtolower($str)) {
557 if (is_numeric($str)) {
558 // Lookie-loo, it's a number
560 // This would work on its own, but I'm trying to be
561 // good about returning integers where appropriate:
562 // return (float)$str;
564 // Return float or int, as appropriate
565 return ((float)$str == (integer)$str)
569 } elseif (preg_match('/^("|\').*(\1)$/s', $str, $m) && $m[1] == $m[2]) {
570 // STRINGS RETURNED IN UTF-8 FORMAT
571 $delim = substr($str, 0, 1);
572 $chrs = substr($str, 1, -1);
574 $strlen_chrs = strlen($chrs);
576 for ($c = 0; $c < $strlen_chrs; ++$c) {
578 $substr_chrs_c_2 = substr($chrs, $c, 2);
579 $ord_chrs_c = ord($chrs{$c});
582 case $substr_chrs_c_2 == '\b':
586 case $substr_chrs_c_2 == '\t':
590 case $substr_chrs_c_2 == '\n':
594 case $substr_chrs_c_2 == '\f':
598 case $substr_chrs_c_2 == '\r':
603 case $substr_chrs_c_2 == '\\"':
604 case $substr_chrs_c_2 == '\\\'':
605 case $substr_chrs_c_2 == '\\\\':
606 case $substr_chrs_c_2 == '\\/':
607 if (($delim == '"' && $substr_chrs_c_2 != '\\\'') ||
608 ($delim == "'" && $substr_chrs_c_2 != '\\"')) {
609 $utf8 .= $chrs{++$c};
613 case preg_match('/\\\u[0-9A-F]{4}/i', substr($chrs, $c, 6)):
614 // single, escaped unicode character
615 $utf16 = chr(hexdec(substr($chrs, ($c + 2), 2)))
616 . chr(hexdec(substr($chrs, ($c + 4), 2)));
617 $utf8 .= $this->utf162utf8($utf16);
621 case ($ord_chrs_c >= 0x20) && ($ord_chrs_c <= 0x7F):
625 case ($ord_chrs_c & 0xE0) == 0xC0:
626 // characters U-00000080 - U-000007FF, mask 110XXXXX
627 //see http://www.cl.cam.ac.uk/~mgk25/unicode.html#utf-8
628 $utf8 .= substr($chrs, $c, 2);
632 case ($ord_chrs_c & 0xF0) == 0xE0:
633 // characters U-00000800 - U-0000FFFF, mask 1110XXXX
634 // see http://www.cl.cam.ac.uk/~mgk25/unicode.html#utf-8
635 $utf8 .= substr($chrs, $c, 3);
639 case ($ord_chrs_c & 0xF8) == 0xF0:
640 // characters U-00010000 - U-001FFFFF, mask 11110XXX
641 // see http://www.cl.cam.ac.uk/~mgk25/unicode.html#utf-8
642 $utf8 .= substr($chrs, $c, 4);
646 case ($ord_chrs_c & 0xFC) == 0xF8:
647 // characters U-00200000 - U-03FFFFFF, mask 111110XX
648 // see http://www.cl.cam.ac.uk/~mgk25/unicode.html#utf-8
649 $utf8 .= substr($chrs, $c, 5);
653 case ($ord_chrs_c & 0xFE) == 0xFC:
654 // characters U-04000000 - U-7FFFFFFF, mask 1111110X
655 // see http://www.cl.cam.ac.uk/~mgk25/unicode.html#utf-8
656 $utf8 .= substr($chrs, $c, 6);
666 } elseif (preg_match('/^\[.*\]$/s', $str) || preg_match('/^\{.*\}$/s', $str)) {
667 // array, or object notation
669 if ($str{0} == '[') {
670 $stk = array(SERVICES_JSON_IN_ARR);
673 if ($this->use & SERVICES_JSON_LOOSE_TYPE) {
674 $stk = array(SERVICES_JSON_IN_OBJ);
677 $stk = array(SERVICES_JSON_IN_OBJ);
678 $obj = new stdClass();
682 array_push($stk, array('what' => SERVICES_JSON_SLICE,
686 $chrs = substr($str, 1, -1);
687 $chrs = $this->reduce_string($chrs);
690 if (reset($stk) == SERVICES_JSON_IN_ARR) {
699 //print("\nparsing {$chrs}\n");
701 $strlen_chrs = strlen($chrs);
703 for ($c = 0; $c <= $strlen_chrs; ++$c) {
706 $substr_chrs_c_2 = substr($chrs, $c, 2);
708 if (($c == $strlen_chrs) || (($chrs{$c} == ',') && ($top['what'] == SERVICES_JSON_SLICE))) {
709 // found a comma that is not inside a string, array, etc.,
710 // OR we've reached the end of the character list
711 $slice = substr($chrs, $top['where'], ($c - $top['where']));
712 array_push($stk, array('what' => SERVICES_JSON_SLICE, 'where' => ($c + 1), 'delim' => false));
713 //print("Found split at {$c}: ".substr($chrs, $top['where'], (1 + $c - $top['where']))."\n");
715 if (reset($stk) == SERVICES_JSON_IN_ARR) {
716 // we are in an array, so just push an element onto the stack
717 array_push($arr, $this->decode($slice));
719 } elseif (reset($stk) == SERVICES_JSON_IN_OBJ) {
720 // we are in an object, so figure
721 // out the property name and set an
722 // element in an associative array,
726 if (preg_match('/^\s*(["\'].*[^\\\]["\'])\s*:\s*(\S.*),?$/Uis', $slice, $parts)) {
728 $key = $this->decode($parts[1]);
729 $val = $this->decode($parts[2]);
731 if ($this->use & SERVICES_JSON_LOOSE_TYPE) {
736 } elseif (preg_match('/^\s*(\w+)\s*:\s*(\S.*),?$/Uis', $slice, $parts)) {
737 // name:value pair, where name is unquoted
739 $val = $this->decode($parts[2]);
741 if ($this->use & SERVICES_JSON_LOOSE_TYPE) {
750 } elseif ((($chrs{$c} == '"') || ($chrs{$c} == "'")) && ($top['what'] != SERVICES_JSON_IN_STR)) {
751 // found a quote, and we are not inside a string
752 array_push($stk, array('what' => SERVICES_JSON_IN_STR, 'where' => $c, 'delim' => $chrs{$c}));
753 //print("Found start of string at {$c}\n");
755 } elseif (($chrs{$c} == $top['delim']) &&
756 ($top['what'] == SERVICES_JSON_IN_STR) &&
757 ((strlen(substr($chrs, 0, $c)) - strlen(rtrim(substr($chrs, 0, $c), '\\'))) % 2 != 1)) {
758 // found a quote, we're in a string, and it's not escaped
759 // we know that it's not escaped becase there is _not_ an
760 // odd number of backslashes at the end of the string so far
762 //print("Found end of string at {$c}: ".substr($chrs, $top['where'], (1 + 1 + $c - $top['where']))."\n");
764 } elseif (($chrs{$c} == '[') &&
765 in_array($top['what'], array(SERVICES_JSON_SLICE, SERVICES_JSON_IN_ARR, SERVICES_JSON_IN_OBJ))) {
766 // found a left-bracket, and we are in an array, object, or slice
767 array_push($stk, array('what' => SERVICES_JSON_IN_ARR, 'where' => $c, 'delim' => false));
768 //print("Found start of array at {$c}\n");
770 } elseif (($chrs{$c} == ']') && ($top['what'] == SERVICES_JSON_IN_ARR)) {
771 // found a right-bracket, and we're in an array
773 //print("Found end of array at {$c}: ".substr($chrs, $top['where'], (1 + $c - $top['where']))."\n");
775 } elseif (($chrs{$c} == '{') &&
776 in_array($top['what'], array(SERVICES_JSON_SLICE, SERVICES_JSON_IN_ARR, SERVICES_JSON_IN_OBJ))) {
777 // found a left-brace, and we are in an array, object, or slice
778 array_push($stk, array('what' => SERVICES_JSON_IN_OBJ, 'where' => $c, 'delim' => false));
779 //print("Found start of object at {$c}\n");
781 } elseif (($chrs{$c} == '}') && ($top['what'] == SERVICES_JSON_IN_OBJ)) {
782 // found a right-brace, and we're in an object
784 //print("Found end of object at {$c}: ".substr($chrs, $top['where'], (1 + $c - $top['where']))."\n");
786 } elseif (($substr_chrs_c_2 == '/*') &&
787 in_array($top['what'], array(SERVICES_JSON_SLICE, SERVICES_JSON_IN_ARR, SERVICES_JSON_IN_OBJ))) {
788 // found a comment start, and we are in an array, object, or slice
789 array_push($stk, array('what' => SERVICES_JSON_IN_CMT, 'where' => $c, 'delim' => false));
791 //print("Found start of comment at {$c}\n");
793 } elseif (($substr_chrs_c_2 == '*/') && ($top['what'] == SERVICES_JSON_IN_CMT)) {
794 // found a comment end, and we're in one now
798 for ($i = $top['where']; $i <= $c; ++$i)
799 $chrs = substr_replace($chrs, ' ', $i, 1);
801 //print("Found end of comment at {$c}: ".substr($chrs, $top['where'], (1 + $c - $top['where']))."\n");
807 if (reset($stk) == SERVICES_JSON_IN_ARR) {
810 } elseif (reset($stk) == SERVICES_JSON_IN_OBJ) {
820 * @todo Ultimately, this should just call PEAR::isError()
822 function isError($data, $code = null)
824 if (class_exists('pear')) {
825 return PEAR::isError($data, $code);
826 } elseif (is_object($data) && (get_class($data) == 'services_json_error' ||
827 is_subclass_of($data, 'services_json_error'))) {
835 if (class_exists('PEAR_Error')) {
837 class Services_JSON_Error extends PEAR_Error
839 function Services_JSON_Error($message = 'unknown error', $code = null,
840 $mode = null, $options = null, $userinfo = null)
842 parent::PEAR_Error($message, $code, $mode, $options, $userinfo);
849 * @todo Ultimately, this class shall be descended from PEAR_Error
851 class Services_JSON_Error
853 function Services_JSON_Error($message = 'unknown error', $code = null,
854 $mode = null, $options = null, $userinfo = null)