重写YII的CJSON为WJSON输出model支持自定义变量-PHP源码

charset)) !== &＃39;UTF-8&＃39;)
                    $var = iconv($enc, &＃39;UTF-8&＃39;, $var);
 
                if (function_exists(&＃39;json_encode&＃39;))
                    return json_encode($var);
 
                // STRINGS ARE EXPECTED TO BE IN ASCII OR UTF-8 FORMAT
                $ascii = &＃39;&＃39;;
                $strlen_var = strlen($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 .= &＃39;\b&＃39;;
                            break;
                        case $ord_var_c == 0x09:
                            $ascii .= &＃39;\t&＃39;;
                            break;
                        case $ord_var_c == 0x0A:
                            $ascii .= &＃39;\n&＃39;;
                            break;
                        case $ord_var_c == 0x0C:
                            $ascii .= &＃39;\f&＃39;;
                            break;
                        case $ord_var_c == 0x0D:
                            $ascii .= &＃39;\r&＃39;;
                            break;
 
                        case $ord_var_c == 0x22:
                        case $ord_var_c == 0x2F:
                        case $ord_var_c == 0x5C:
                            // double quote, slash, slosh
                            $ascii .= &＃39;\\&＃39; . $var{$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(&＃39;C*&＃39;, $ord_var_c, ord($var{$c + 1}));
                            $c += 1;
                            $utf16 = self::utf8ToUTF16BE($char);
                            $ascii .= sprintf(&＃39;\u%04s&＃39;, bin2hex($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(&＃39;C*&＃39;, $ord_var_c,
                                ord($var{$c + 1}),
                                ord($var{$c + 2}));
                            $c += 2;
                            $utf16 = self::utf8ToUTF16BE($char);
                            $ascii .= sprintf(&＃39;\u%04s&＃39;, bin2hex($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(&＃39;C*&＃39;, $ord_var_c,
                                ord($var{$c + 1}),
                                ord($var{$c + 2}),
                                ord($var{$c + 3}));
                            $c += 3;
                            $utf16 = self::utf8ToUTF16BE($char);
                            $ascii .= sprintf(&＃39;\u%04s&＃39;, bin2hex($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(&＃39;C*&＃39;, $ord_var_c,
                                ord($var{$c + 1}),
                                ord($var{$c + 2}),
                                ord($var{$c + 3}),
                                ord($var{$c + 4}));
                            $c += 4;
                            $utf16 = self::utf8ToUTF16BE($char);
                            $ascii .= sprintf(&＃39;\u%04s&＃39;, bin2hex($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(&＃39;C*&＃39;, $ord_var_c,
                                ord($var{$c + 1}),
                                ord($var{$c + 2}),
                                ord($var{$c + 3}),
                                ord($var{$c + 4}),
                                ord($var{$c + 5}));
                            $c += 5;
                            $utf16 = self::utf8ToUTF16BE($char);
                            $ascii .= sprintf(&＃39;\u%04s&＃39;, bin2hex($utf16));
                            break;
                    }
                }
 
                return &＃39;"&＃39; . $ascii . &＃39;"&＃39;;
 
            case &＃39;array&＃39;:
 
                // treat as a JSON object
                if (is_array($var) && count($var) && (array_keys($var) !== range(0, sizeof($var) - 1))) {
                    return &＃39;{&＃39; .
                    join(&＃39;,&＃39;, array_map(array(&＃39;WJSON&＃39;, &＃39;nameValue&＃39;),
                        array_keys($var),
                        array_values($var)))
                    . &＃39;}&＃39;;
                }
 
                // treat it like a regular array
                return &＃39;[&＃39; . join(&＃39;,&＃39;, array_map(array(&＃39;WJSON&＃39;, &＃39;encode&＃39;), $var)) . &＃39;]&＃39;;
 
            case &＃39;object&＃39;:
                if ($var instanceof Traversable) {
                    $vars = array();
                    foreach ($var as $k => $v)
                        $vars[$k] = $v;
                } else
                    $vars = get_object_vars($var);
 
                // related
                foreach ($var->relations() as $key => $related) {
                    if ($var->hasRelated($key)) {
                        $vars[$key] = $var->$key;
                    }
                }
 
                return &＃39;{&＃39; .
                join(&＃39;,&＃39;, array_map(array(&＃39;WJSON&＃39;, &＃39;nameValue&＃39;),
                    array_keys($vars),
                    array_values($vars)))
                . &＃39;}&＃39;;
 
            default:
                return &＃39;&＃39;;
        }
    }
 
}