www.gusucode.com > Ectouch手机端网购商城系统PHP版源码程序 > ectouch/include/library/EcsJson.class.php
<?php
/* 访问控制 */
defined('IN_ECTOUCH') or die('Deny Access');
/**
* ECSHOP JSON
*/
class EcsJson {
var $at = 0;
var $ch = '';
var $text = '';
function encode($arg, $force = true) {
static $_force;
if (is_null($_force)) {
$_force = $force;
}
if ($_force && EC_CHARSET == 'utf-8' && function_exists('json_encode')) {
return json_encode($arg);
}
$returnValue = '';
$c = '';
$i = '';
$l = '';
$s = '';
$v = '';
$numeric = true;
switch (gettype($arg)) {
case 'array':
foreach ($arg AS $i => $v) {
if (!is_numeric($i)) {
$numeric = false;
break;
}
}
if ($numeric) {
foreach ($arg AS $i => $v) {
if (strlen($s) > 0) {
$s .= ',';
}
$s .= $this->encode($arg[$i]);
}
$returnValue = '[' . $s . ']';
} else {
foreach ($arg AS $i => $v) {
if (strlen($s) > 0) {
$s .= ',';
}
$s .= $this->encode($i) . ':' . $this->encode($arg[$i]);
}
$returnValue = '{' . $s . '}';
}
break;
case 'object':
foreach (get_object_vars($arg) AS $i => $v) {
$v = $this->encode($v);
if (strlen($s) > 0) {
$s .= ',';
}
$s .= $this->encode($i) . ':' . $v;
}
$returnValue = '{' . $s . '}';
break;
case 'integer':
case 'double':
$returnValue = is_numeric($arg) ? (string) $arg : 'null';
break;
case 'string':
$returnValue = '"' . strtr($arg, array(
"\r" => '\\r', "\n" => '\\n', "\t" => '\\t', "\b" => '\\b',
"\f" => '\\f', '\\' => '\\\\', '"' => '\"',
"\x00" => '\u0000', "\x01" => '\u0001', "\x02" => '\u0002', "\x03" => '\u0003',
"\x04" => '\u0004', "\x05" => '\u0005', "\x06" => '\u0006', "\x07" => '\u0007',
"\x08" => '\b', "\x0b" => '\u000b', "\x0c" => '\f', "\x0e" => '\u000e',
"\x0f" => '\u000f', "\x10" => '\u0010', "\x11" => '\u0011', "\x12" => '\u0012',
"\x13" => '\u0013', "\x14" => '\u0014', "\x15" => '\u0015', "\x16" => '\u0016',
"\x17" => '\u0017', "\x18" => '\u0018', "\x19" => '\u0019', "\x1a" => '\u001a',
"\x1b" => '\u001b', "\x1c" => '\u001c', "\x1d" => '\u001d', "\x1e" => '\u001e',
"\x1f" => '\u001f'
)) . '"';
break;
case 'boolean':
$returnValue = $arg ? 'true' : 'false';
break;
default:
$returnValue = 'null';
}
return $returnValue;
}
function decode($text, $type = 0) { // 榛樿?type=0杩斿洖obj,type=1杩斿洖array
if (empty($text)) {
return '';
} elseif (!is_string($text)) {
return false;
}
if (EC_CHARSET === 'utf-8' && function_exists('json_decode')) {
return addslashes_deep_obj(json_decode(stripslashes($text), $type));
}
$this->at = 0;
$this->ch = '';
$this->text = strtr(stripslashes($text), array(
"\r" => '', "\n" => '', "\t" => '', "\b" => '',
"\x00" => '', "\x01" => '', "\x02" => '', "\x03" => '',
"\x04" => '', "\x05" => '', "\x06" => '', "\x07" => '',
"\x08" => '', "\x0b" => '', "\x0c" => '', "\x0e" => '',
"\x0f" => '', "\x10" => '', "\x11" => '', "\x12" => '',
"\x13" => '', "\x14" => '', "\x15" => '', "\x16" => '',
"\x17" => '', "\x18" => '', "\x19" => '', "\x1a" => '',
"\x1b" => '', "\x1c" => '', "\x1d" => '', "\x1e" => '',
"\x1f" => ''
));
$this->next();
$return = $this->val();
$result = empty($type) ? $return : $this->object_to_array($return);
return addslashes_deep_obj($result);
}
/**
* triggers a PHP_ERROR
*
* @access private
* @param string $m error message
*
* @return void
*/
function error($m) {
echo($m . ' at offset ' . $this->at . ': ' . $this->text);
}
/**
* returns the next character of a JSON string
*
* @access private
*
* @return string
*/
function next() {
$this->ch = !isset($this->text{$this->at}) ? '' : $this->text{$this->at};
$this->at++;
return $this->ch;
}
/**
* handles strings
*
* @access private
*
* @return void
*/
function str() {
$i = '';
$s = '';
$t = '';
$u = '';
if ($this->ch == '"') {
while ($this->next() !== null) {
if ($this->ch == '"') {
$this->next();
return $s;
} elseif ($this->ch == '\\') {
switch ($this->next()) {
case 'b':
$s .= '\b';
break;
case 'f':
$s .= '\f';
break;
case 'n':
$s .= '\n';
break;
case 'r':
$s .= '\r';
break;
case 't':
$s .= '\t';
break;
case 'u':
$u = 0;
for ($i = 0; $i < 4; $i++) {
$t = (integer) sprintf('%01c', hexdec($this->next()));
if (!is_numeric($t)) {
break 2;
}
$u = $u * 16 + $t;
}
$s .= chr($u);
break;
case '\'':
$s .= '\'';
break;
default:
$s .= $this->ch;
}
} else {
$s .= $this->ch;
}
}
}
$this->error('Bad string');
}
/**
* handless arrays
*
* @access private
*
* @return void
*/
function arr() {
$a = array();
if ($this->ch == '[') {
$this->next();
if ($this->ch == ']') {
$this->next();
return $a;
}
while (isset($this->ch)) {
array_push($a, $this->val());
if ($this->ch == ']') {
$this->next();
return $a;
} elseif ($this->ch != ',') {
break;
}
$this->next();
}
$this->error('Bad array');
}
}
/**
* handles objects
*
* @access public
*
* @return void
*/
function obj() {
$k = '';
$o = new StdClass();
if ($this->ch == '{') {
$this->next();
if ($this->ch == '}') {
$this->next();
return $o;
}
while ($this->ch) {
$k = $this->str();
if ($this->ch != ':') {
break;
}
$this->next();
$o->$k = $this->val();
if ($this->ch == '}') {
$this->next();
return $o;
} elseif ($this->ch != ',') {
break;
}
$this->next();
}
}
$this->error('Bad object');
}
/**
* handles objects
*
* @access public
*
* @return void
*/
function assoc() {
$k = '';
$a = array();
if ($this->ch == '<') {
$this->next();
if ($this->ch == '>') {
$this->next();
return $a;
}
while ($this->ch) {
$k = $this->str();
if ($this->ch != ':') {
break;
}
$this->next();
$a[$k] = $this->val();
if ($this->ch == '>') {
$this->next();
return $a;
} elseif ($this->ch != ',') {
break;
}
$this->next();
}
}
$this->error('Bad associative array');
}
/**
* handles numbers
*
* @access private
*
* @return void
*/
function num() {
$n = '';
$v = '';
if ($this->ch == '-') {
$n = '-';
$this->next();
}
while ($this->ch >= '0' && $this->ch <= '9') {
$n .= $this->ch;
$this->next();
}
if ($this->ch == '.') {
$n .= '.';
while ($this->next() && $this->ch >= '0' && $this->ch <= '9') {
$n .= $this->ch;
}
}
if ($this->ch == 'e' || $this->ch == 'E') {
$n .= 'e';
$this->next();
if ($this->ch == '-' || $this->ch == '+') {
$n .= $this->ch;
$this->next();
}
while ($this->ch >= '0' && $this->ch <= '9') {
$n .= $this->ch;
$this->next();
}
}
$v += $n;
if (!is_numeric($v)) {
$this->error('Bad number');
} else {
return $v;
}
}
/**
* handles words
*
* @access private
*
* @return mixed
*/
function word() {
switch ($this->ch) {
case 't':
if ($this->next() == 'r' && $this->next() == 'u' && $this->next() == 'e') {
$this->next();
return true;
}
break;
case 'f':
if ($this->next() == 'a' && $this->next() == 'l' && $this->next() == 's' && $this->next() == 'e') {
$this->next();
return false;
}
break;
case 'n':
if ($this->next() == 'u' && $this->next() == 'l' && $this->next() == 'l') {
$this->next();
return null;
}
break;
}
$this->error('Syntax error');
}
/**
* generic value handler
*
* @access private
*
* @return mixed
*/
function val() {
switch ($this->ch) {
case '{':
return $this->obj();
case '[':
return $this->arr();
case '<':
return $this->assoc();
case '"':
return $this->str();
case '-':
return $this->num();
default:
return ($this->ch >= '0' && $this->ch <= '9') ? $this->num() : $this->word();
}
}
/**
* Gets the properties of the given object recursion
*
* @access private
*
* @return array
*/
function object_to_array($obj) {
$_arr = is_object($obj) ? get_object_vars($obj) : $obj;
foreach ($_arr as $key => $val) {
$val = (is_array($val) || is_object($val)) ? $this->object_to_array($val) : $val;
$arr[$key] = $val;
}
return $arr;
}
}
?>