PHP实现的json类实例 |
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本文标签：PHP,json类 本文实例讲述了PHP实现的json类 。分享给大家供大家参考 。具体如下： 这里注意json_encode只有(PHP 5 >= 5.2.0, PECL json >= 1.2.0)才有
<?php
/* vim: set expandtab tabstop=4 shiftwidth=4 softtabstop=4: */
/**
* Converts to and from JSON format.
*
* JSON (JavaScript Object Notation) is a lightweight data-interchange
* format. It is easy for humans to read and write. It is easy for machines
* to parse and generate. It is based on a subset of the JavaScript
* Programming Language, Standard ECMA-262 3rd Edition - December 1999.
* This feature can also be found in Python. JSON is a text format that is
* completely language independent but uses conventions that are familiar
* to programmers of the C-family of languages, including C, C++, C#, Java,
* JavaScript, Perl, TCL, and many others. These properties make JSON an
* ideal data-interchange language.
*
* This package provides a simple encoder and decoder for JSON notation. It
* is intended for use with client-side Javascript applications that make
* use of HTTPRequest to perform server communication functions - data can
* be encoded into JSON notation for use in a client-side javascript, or
* decoded from incoming Javascript requests. JSON format is native to
* Javascript, and can be directly eval()ed with no further parsing
* overhead
*
* All strings should be in ASCII or UTF-8 format!
*
* LICENSE: Redistribution and use in source and binary forms, with or
* without modification, are permitted provided that the following
* conditions are met: Redistributions of source code must retain the
* above copyright notice, this list of conditions and the following
* disclaimer. Redistributions in binary form must reproduce the above
* copyright notice, this list of conditions and the following disclaimer
* in the documentation and/or other materials provided with the
* distribution.
*
* THIS SOFTWARE IS PROVIDED ``AS IS AND ANY EXPRESS OR IMPLIED
* WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF
* MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN
* NO EVENT SHALL CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT,
* INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING,
* BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS
* OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND
* ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR
* TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE
* USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH
* DAMAGE.
*
* @category
* @package Services_JSON
* @author Michal Migurski <mike-json@teczno.com>
* @author Matt Knapp <mdknapp[at]gmail[dot]com>
* @author Brett Stimmerman <brettstimmerman[at]gmail[dot]com>
* @copyright 2005 Michal Migurski
* @version CVS: $Id: JSON.php,v 1.31 2006/06/28 05:54:17 migurski Exp $
* @license http://www.opensource.org/licenses/bsd-license.php
* @link http://pear.php.net/pepr/pepr-proposal-show.php?id=198
*/
/**
* Marker constant for Services_JSON::decode(), used to flag stack state
*/
define(SERVICES_JSON_SLICE, 1);
/**
* Marker constant for Services_JSON::decode(), used to flag stack state
*/
define(SERVICES_JSON_IN_STR, 2);
/**
* Marker constant for Services_JSON::decode(), used to flag stack state
*/
define(SERVICES_JSON_IN_ARR, 3);
/**
* Marker constant for Services_JSON::decode(), used to flag stack state
*/
define(SERVICES_JSON_IN_OBJ, 4);
/**
* Marker constant for Services_JSON::decode(), used to flag stack state
*/
define(SERVICES_JSON_IN_CMT, 5);
/**
* Behavior switch for Services_JSON::decode()
*/
define(SERVICES_JSON_LOOSE_TYPE, 16);
/**
* Behavior switch for Services_JSON::decode()
*/
define(SERVICES_JSON_SUPPRESS_ERRORS, 32);
/**
* Converts to and from JSON format.
*
* Brief example of use:
*
* <code>
* // create a new instance of Services_JSON
* $json = new Services_JSON();
*
* // convert a complexe value to JSON notation, and send it to the browser
* $value = array(foo, bar, array(1, 2, baz), array(3, array(4)));
* $output = $json->encode($value);
*
* print($output);
* // prints: ["foo","bar",[1,2,"baz"],[3,[4]]]
*
* // accept incoming POST data, assumed to be in JSON notation
* $input = file_get_contents(php://input, 1000000);
* $value = $json->decode($input);
* </code>
*/
class Services_JSON
{
/**
* constructs a new JSON instance
*
* @param int $use object behavior flags; combine with boolean-OR
*
* possible values:
* - SERVICES_JSON_LOOSE_TYPE: loose typing.
* "{...}" syntax creates associative arrays
* instead of objects in decode().
* - SERVICES_JSON_SUPPRESS_ERRORS: error suppression.
* Values which cant be encoded (e.g. resources)
* appear as NULL instead of throwing errors.
* By default, a deeply-nested resource will
* bubble up with an error, so all return values
* from encode() should be checked with isError()
*/
function Services_JSON($use = 0)
{
$this->use = $use;
}
/**
* convert a string from one UTF-16 char to one UTF-8 char
*
* Normally should be handled by mb_convert_encoding, but
* provides a slower PHP-only method for installations
* that lack the multibye string extension.
*
* @param string $utf16 UTF-16 character
* @return string UTF-8 character
* @access private
*/
function utf162utf8($utf16)
{
// oh please oh please oh please oh please oh please
if(function_exists(mb_convert_encoding)) {
return mb_convert_encoding($utf16, UTF-8, UTF-16);
}
$bytes = (ord($utf16{0}) << 8) | ord($utf16{1});
switch(true) {
case ((0x7F & $bytes) == $bytes):
// this case should never be reached, because we are in ASCII range
// see: http://www.cl.cam.ac.uk/'mgk25/unicode.html#utf-8
return chr(0x7F & $bytes);
case (0x07FF & $bytes) == $bytes:
// return a 2-byte UTF-8 character
// see: http://www.cl.cam.ac.uk/'mgk25/unicode.html#utf-8
return chr(0xC0 | (($bytes >> 6) & 0x1F))
. chr(0x80 | ($bytes & 0x3F));
case (0xFFFF & $bytes) == $bytes:
// return a 3-byte UTF-8 character
// see: http://www.cl.cam.ac.uk/'mgk25/unicode.html#utf-8
return chr(0xE0 | (($bytes >> 12) & 0x0F))
. chr(0x80 | (($bytes >> 6) & 0x3F))
. chr(0x80 | ($bytes & 0x3F));
}
// ignoring UTF-32 for now, sorry
return ;
}
/**
* convert a string from one UTF-8 char to one UTF-16 char
*
* Normally should be handled by mb_convert_encoding, but
* provides a slower PHP-only method for installations
* that lack the multibye string extension.
*
* @param string $utf8 UTF-8 character
* @return string UTF-16 character
* @access private
*/
function utf82utf16($utf8)
{
// oh please oh please oh please oh please oh please
if(function_exists(mb_convert_encoding)) {
return mb_convert_encoding($utf8, UTF-16, UTF-8);
}
switch(strlen($utf8)) {
case 1:
// this case should never be reached, because we are in ASCII range
// see: http://www.cl.cam.ac.uk/'mgk25/unicode.html#utf-8
return $utf8;
case 2:
// return a UTF-16 character from a 2-byte UTF-8 char
// see: http://www.cl.cam.ac.uk/'mgk25/unicode.html#utf-8
return chr(0x07 & (ord($utf8{0}) >> 2))
. chr((0xC0 & (ord($utf8{0}) << 6))
| (0x3F & ord($utf8{1})));
case 3:
// return a UTF-16 character from a 3-byte UTF-8 char
// see: http://www.cl.cam.ac.uk/'mgk25/unicode.html#utf-8
return chr((0xF0 & (ord($utf8{0}) << 4))
| (0x0F & (ord($utf8{1}) >> 2)))
. chr((0xC0 & (ord($utf8{1}) << 6))
| (0x7F & ord($utf8{2})));
}
// ignoring UTF-32 for now, sorry
return ;
}
/**
* encodes an arbitrary variable into JSON format
*
* @param mixed $var any number, boolean, string, array, or object to be encoded.
* see argument 1 to Services_JSON() above for array-parsing behavior.
* if var is a strng, note that encode() always expects it
* to be in ASCII or UTF-8 format!
*
* @return mixed JSON string representation of input var or an error if a problem occurs
* @access public
*/
function encode($var)
{
switch (gettype($var)) {
case boolean:
return $var ? true : false;
case NULL:
return null;
case integer:
return (int) $var;
case double:
case float:
return (float) $var;
case string:
// STRINGS ARE EXPECTED TO BE IN ASCII OR UTF-8 FORMAT
$ascii = ;
$strlen_var = strlen($var);
/*
* Iterate over every character in the string,
* escaping with a slash or encoding to UTF-8 where necessary
*/
for ($c = 0; $c < $strlen_var; ++$c) {
$ord_var_c = ord($var{$c});
switch (true) {
case $ord_var_c == 0x08:
$ascii .= \b;
break;
case $ord_var_c == 0x09:
$ascii .= \t;
break;
case $ord_var_c == 0x0A:
$ascii .= \n;
break;
case $ord_var_c == 0x0C:
$ascii .= \f;
break;
case $ord_var_c == 0x0D:
$ascii .= \r;
break;
case $ord_var_c == 0x22:
case $ord_var_c == 0x2F:
case $ord_var_c == 0x5C:
// double quote, slash, slosh
$ascii .= \\.$var{$c};
break;
case (($ord_var_c >= 0x20) && ($ord_var_c <= 0x7F)):
// characters U-00000000 - U-0000007F (same as ASCII)
$ascii .= $var{$c};
break;
case (($ord_var_c & 0xE0) == 0xC0):
// characters U-00000080 - U-000007FF, mask 110XXXXX
// see http://www.cl.cam.ac.uk/'mgk25/unicode.html#utf-8
$char = pack(C*, $ord_var_c, ord($var{$c + 1}));
$c += 1;
$utf16 = $this->utf82utf16($char);
$ascii .= sprintf(\u%04s, bin2hex($utf16));
break;
case (($ord_var_c & 0xF0) == 0xE0):
// characters U-00000800 - U-0000FFFF, mask 1110XXXX
// see http://www.cl.cam.ac.uk/'mgk25/unicode.html#utf-8
$char = pack(C*, $ord_var_c,
ord($var{$c + 1}),
ord($var{$c + 2}));
$c += 2;
$utf16 = $this->utf82utf16($char);
$ascii .= sprintf(\u%04s, bin2hex($utf16));
break;
case (($ord_var_c & 0xF8) == 0xF0):
// characters U-00010000 - U-001FFFFF, mask 11110XXX
// see http://www.cl.cam.ac.uk/'mgk25/unicode.html#utf-8
$char = pack(C*, $ord_var_c,
ord($var{$c + 1}),
ord($var{$c + 2}),
ord($var{$c + 3}));
$c += 3;
$utf16 = $this->utf82utf16($char);
$ascii .= sprintf(\u%04s, bin2hex($utf16));
break;
case (($ord_var_c & 0xFC) == 0xF8):
// characters U-00200000 - U-03FFFFFF, mask 111110XX
// see http://www.cl.cam.ac.uk/'mgk25/unicode.html#utf-8
$char = pack(C*, $ord_var_c,
ord($var{$c + 1}),
ord($var{$c + 2}),
ord($var{$c + 3}),
ord($var{$c + 4}));
$c += 4;
$utf16 = $this->utf82utf16($char);
$ascii .= sprintf(\u%04s, bin2hex($utf16));
break;
case (($ord_var_c & 0xFE) == 0xFC):
// characters U-04000000 - U-7FFFFFFF, mask 1111110X
// see http://www.cl.cam.ac.uk/'mgk25/unicode.html#utf-8
$char = pack(C*, $ord_var_c,
ord($var{$c + 1}),
ord($var{$c + 2}),
ord($var{$c + 3}),
ord($var{$c + 4}),
ord($var{$c + 5}));
$c += 5;
$utf16 = $this->utf82utf16($char);
$ascii .= sprintf(\u%04s, bin2hex($utf16));
break;
}
}
return ".$ascii.";
case array:
/*
* As per JSON spec if any array key is not an integer
* we must treat the the whole array as an object. We
* also try to catch a sparsely populated associative
* array with numeric keys here because some JS engines
* will create an array with empty indexes up to
* max_index which can cause memory issues and because
* the keys, which may be relevant, will be remapped
* otherwise.
*
* As per the ECMA and JSON specification an object may
* have any string as a property. Unfortunately due to
* a hole in the ECMA specification if the key is a
* ECMA reserved word or starts with a digit the
* parameter is only accessible using ECMAScripts
* bracket notation.
*/
// treat as a JSON object
if (is_array($var) && count($var) && (array_keys($var) !== range(0, sizeof($var) - 1))) {
$properties = array_map(array($this, name_value),
array_keys($var),
array_values($var));
foreach($properties as $property) {
if(Services_JSON::isError($property)) {
return $property;
}
}
return { . join(,, $properties) . };
}
// treat it like a regular array
$elements = array_map(array($this, encode), $var);
foreach($elements as $element) {
if(Services_JSON::isError($element)) {
return $element;
}
}
return [ . join(,, $elements) . ];
case object:
$vars = get_object_vars($var);
$properties = array_map(array($this, name_value),
array_keys($vars),
array_values($vars));
foreach($properties as $property) {
if(Services_JSON::isError($property)) {
return $property;
}
}
return { . join(,, $properties) . };
default:
return ($this->use & SERVICES_JSON_SUPPRESS_ERRORS)
? null
: new Services_JSON_Error(gettype($var)." can not be encoded as JSON string");
}
}
/**
* array-walking function for use in generating JSON-formatted name-value pairs
*
* @param string $name name of key to use
* @param mixed $value reference to an array element to be encoded
*
* @return string JSON-formatted name-value pair, like "name":value
* @access private
*/
function name_value($name, $value)
{
$encoded_value = $this->encode($value);
if(Services_JSON::isError($encoded_value)) {
return $encoded_value;
}
return $this->encode(strval($name)) . : . $encoded_value;
}
/**
* reduce a string by removing leading and trailing comments and whitespace
*
* @param $str string string value to strip of comments and whitespace
*
* @return string string value stripped of comments and whitespace
* @access private
*/
function reduce_string($str)
{
$str = preg_replace(array(
// eliminate single line comments in // ... form
#^\s*//(.+)$#m,
// eliminate multi-line comments in /* ... */ form, at start of string
#^\s*/\*(.+)\*/#Us,
// eliminate multi-line comments in /* ... */ form, at end of string
#/\*(.+)\*/\s*$#Us
), , $str);
// eliminate extraneous space
return trim($str);
}
/**
* decodes a JSON string into appropriate variable
*
* @param string $str JSON-formatted string
*
* @return mixed number, boolean, string, array, or object
* corresponding to given JSON input string.
* See argument 1 to Services_JSON() above for object-output behavior.
* Note that decode() always returns strings
* in ASCII or UTF-8 format!
* @access public
*/
function decode($str)
{
$str = $this->reduce_string($str);
switch (strtolower($str)) {
case true:
return true;
case false:
return false;
case null:
return null;
default:
$m = array();
if (is_numeric($str)) {
// Lookie-loo, its a number
// This would work on its own, but Im trying to be
// good about returning integers where appropriate:
// return (float)$str;
// Return float or int, as appropriate
return ((float)$str == (integer)$str)
? (integer)$str
: (float)$str;
} elseif (preg_match(/^("|\).*(\1)$/s, $str, $m) && $m[1] == $m[2]) {
// STRINGS RETURNED IN UTF-8 FORMAT
$delim = substr($str, 0, 1);
$chrs = substr($str, 1, -1);
$utf8 = ;
$strlen_chrs = strlen($chrs);
for ($c = 0; $c < $strlen_chrs; ++$c) {
$substr_chrs_c_2 = substr($chrs, $c, 2);
$ord_chrs_c = ord($chrs{$c});
switch (true) {
case $substr_chrs_c_2 == \b:
$utf8 .= chr(0x08);
++$c;
break;
case $substr_chrs_c_2 == \t:
$utf8 .= chr(0x09);
++$c;
break;
case $substr_chrs_c_2 == \n:
$utf8 .= chr(0x0A);
++$c;
break;
case $substr_chrs_c_2 == \f:
$utf8 .= chr(0x0C);
++$c;
break;
case $substr_chrs_c_2 == \r:
$utf8 .= chr(0x0D);
++$c;
break;
case $substr_chrs_c_2 == \\":
case $substr_chrs_c_2 == \\\:
case $substr_chrs_c_2 == \\\\:
case $substr_chrs_c_2 == \\/:
if (($delim == " && $substr_chrs_c_2 != \\\) ||
($delim == "" && $substr_chrs_c_2 != \\")) {
$utf8 .= $chrs{++$c};
}
break;
case preg_match(/\\\u[0-9A-F]{4}/i, substr($chrs, $c, 6)):
// single, escaped unicode character
$utf16 = chr(hexdec(substr($chrs, ($c + 2), 2)))
. chr(hexdec(substr($chrs, ($c + 4), 2)));
$utf8 .= $this->utf162utf8($utf16);
$c += 5;
break;
case ($ord_chrs_c >= 0x20) && ($ord_chrs_c <= 0x7F):
$utf8 .= $chrs{$c};
break;
case ($ord_chrs_c & 0xE0) == 0xC0:
// characters U-00000080 - U-000007FF, mask 110XXXXX
//see http://www.cl.cam.ac.uk/'mgk25/unicode.html#utf-8
$utf8 .= substr($chrs, $c, 2);
++$c;
break;
case ($ord_chrs_c & 0xF0) == 0xE0:
// characters U-00000800 - U-0000FFFF, mask 1110XXXX
// see http://www.cl.cam.ac.uk/'mgk25/unicode.html#utf-8
$utf8 .= substr($chrs, $c, 3);
$c += 2;
break;
case ($ord_chrs_c & 0xF8) == 0xF0:
// characters U-00010000 - U-001FFFFF, mask 11110XXX
// see http://www.cl.cam.ac.uk/'mgk25/unicode.html#utf-8
$utf8 .= substr($chrs, $c, 4);
$c += 3;
break;
case ($ord_chrs_c & 0xFC) == 0xF8:
// characters U-00200000 - U-03FFFFFF, mask 111110XX
// see http://www.cl.cam.ac.uk/'mgk25/unicode.html#utf-8
$utf8 .= substr($chrs, $c, 5);
$c += 4;
break;
case ($ord_chrs_c & 0xFE) == 0xFC:
// characters U-04000000 - U-7FFFFFFF, mask 1111110X
// see http://www.cl.cam.ac.uk/'mgk25/unicode.html#utf-8
$utf8 .= substr($chrs, $c, 6);
$c += 5;
break;
}
}
return $utf8;
} elseif (preg_match(/^\[.*\]$/s, $str) || preg_match(/^\{.*\}$/s, $str)) {
// array, or object notation
if ($str{0} == [) {
$stk = array(SERVICES_JSON_IN_ARR);
$arr = array();
} else {
if ($this->use & SERVICES_JSON_LOOSE_TYPE) {
$stk = array(SERVICES_JSON_IN_OBJ);
$obj = array();
} else {
$stk = array(SERVICES_JSON_IN_OBJ);
$obj = new stdClass();
}
}
array_push($stk, array(what => SERVICES_JSON_SLICE,
where => 0,
delim => false));
$chrs = substr($str, 1, -1);
$chrs = $this->reduce_string($chrs);
if ($chrs == ) {
if (reset($stk) == SERVICES_JSON_IN_ARR) {
return $arr;
} else {
return $obj;
}
}
//print("\nparsing {$chrs}\n");
$strlen_chrs = strlen($chrs);
for ($c = 0; $c <= $strlen_chrs; ++$c) {
$top = end($stk);
$substr_chrs_c_2 = substr($chrs, $c, 2);
if (($c == $strlen_chrs) || (($chrs{$c} == ,) && ($top[what] == SERVICES_JSON_SLICE))) {
// found a comma that is not inside a string, array, etc.,
// OR weve reached the end of the character list
$slice = substr($chrs, $top[where], ($c - $top[where]));
array_push($stk, array(what => SERVICES_JSON_SLICE, where => ($c + 1), delim => false));
//print("Found split at {$c}: ".substr($chrs, $top[where], (1 + $c - $top[where]))."\n");
if (reset($stk) == SERVICES_JSON_IN_ARR) {
// we are in an array, so just push an element onto the stack
array_push($arr, $this->decode($slice));
} elseif (reset($stk) == SERVICES_JSON_IN_OBJ) {
// we are in an object, so figure
// out the property name and set an
// element in an associative array,
// for now
$parts = array();
if (preg_match(/^\s*(["\].*[^\\\]["\])\s*:\s*(\S.*),?$/Uis, $slice, $parts)) {
// "name":value pair
$key = $this->decode($parts[1]);
$val = $this->decode($parts[2]);
if ($this->use & SERVICES_JSON_LOOSE_TYPE) {
$obj[$key] = $val;
} else {
$obj->$key = $val;
}
} elseif (preg_match(/^\s*(\w+)\s*:\s*(\S.*),?$/Uis, $slice, $parts)) {
// name:value pair, where name is unquoted
$key = $parts[1];
$val = $this->decode($parts[2]);
if ($this->use & SERVICES_JSON_LOOSE_TYPE) {
$obj[$key] = $val;
} else {
$obj->$key = $val;
}
}
}
} elseif ((($chrs{$c} == ") || ($chrs{$c} == "")) && ($top[what] != SERVICES_JSON_IN_STR)) {
// found a quote, and we are not inside a string
array_push($stk, array(what => SERVICES_JSON_IN_STR, where => $c, delim => $chrs{$c}));
//print("Found start of string at {$c}\n");
} elseif (($chrs{$c} == $top[delim]) &&
($top[what] == SERVICES_JSON_IN_STR) &&
((strlen(substr($chrs, 0, $c)) - strlen(rtrim(substr($chrs, 0, $c), \\))) % 2 != 1)) {
// found a quote, were in a string, and its not escaped
// we know that its not escaped becase there is _not_ an
// odd number of backslashes at the end of the string so far
array_pop($stk);
//print("Found end of string at {$c}: ".substr($chrs, $top[where], (1 + 1 + $c - $top[where]))."\n");
} elseif (($chrs{$c} == [) &&
in_array($top[what], array(SERVICES_JSON_SLICE, SERVICES_JSON_IN_ARR, SERVICES_JSON_IN_OBJ))) {
// found a left-bracket, and we are in an array, object, or slice
array_push($stk, array(what => SERVICES_JSON_IN_ARR, where => $c, delim => false));
//print("Found start of array at {$c}\n");
} elseif (($chrs{$c} == ]) && ($top[what] == SERVICES_JSON_IN_ARR)) {
// found a right-bracket, and were in an array
array_pop($stk);
//print("Found end of array at {$c}: ".substr($chrs, $top[where], (1 + $c - $top[where]))."\n");
} elseif (($chrs{$c} == {) &&
in_array($top[what], array(SERVICES_JSON_SLICE, SERVICES_JSON_IN_ARR, SERVICES_JSON_IN_OBJ))) {
// found a left-brace, and we are in an array, object, or slice
array_push($stk, array(what => SERVICES_JSON_IN_OBJ, where => $c, delim => false));
//print("Found start of object at {$c}\n");
} elseif (($chrs{$c} == }) && ($top[what] == SERVICES_JSON_IN_OBJ)) {
// found a right-brace, and were in an object
array_pop($stk);
//print("Found end of object at {$c}: ".substr($chrs, $top[where], (1 + $c - $top[where]))."\n");
} elseif (($substr_chrs_c_2 == /*) &&
in_array($top[what], array(SERVICES_JSON_SLICE, SERVICES_JSON_IN_ARR, SERVICES_JSON_IN_OBJ))) {
// found a comment start, and we are in an array, object, or slice
array_push($stk, array(what => SERVICES_JSON_IN_CMT, where => $c, delim => false));
$c++;
//print("Found start of comment at {$c}\n");
} elseif (($substr_chrs_c_2 == */) && ($top[what] == SERVICES_JSON_IN_CMT)) {
// found a comment end, and were in one now
array_pop($stk);
$c++;
for ($i = $top[where]; $i <= $c; ++$i)
$chrs = substr_replace($chrs, , $i, 1);
//print("Found end of comment at {$c}: ".substr($chrs, $top[where], (1 + $c - $top[where]))."\n");
}
}
if (reset($stk) == SERVICES_JSON_IN_ARR) {
return $arr;
} elseif (reset($stk) == SERVICES_JSON_IN_OBJ) {
return $obj;
}
}
}
}
/**
* @todo Ultimately, this should just call PEAR::isError()
*/
function isError($data, $code = null)
{
if (class_exists(pear)) {
return PEAR::isError($data, $code);
} elseif (is_object($data) && (get_class($data) == services_json_error || is_subclass_of($data, services_json_error))) {
return true;
}
return false;
}
}
if (class_exists(PEAR_Error)) {
class Services_JSON_Error extends PEAR_Error
{
function Services_JSON_Error($message = unknown error, $code = null, $mode = null, $options = null, $userinfo = null)
{
parent::PEAR_Error($message, $code, $mode, $options, $userinfo);
}
}
} else {
/**
* @todo Ultimately, this class shall be descended from PEAR_Error
*/
class Services_JSON_Error
{
function Services_JSON_Error($message = unknown error, $code = null, $mode = null, $options = null, $userinfo = null)
{
}
}
}
?>
希望本文所述对大家的php程序设计有所帮助 。 |
