CNZZ站长统计Discuz!插件

<?php ! defined ( 'CNZZTONGJI' ) && exit ( 'Forbidden' ); class CJSON { const JSON_SLICE = 1; const JSON_IN_STR = 2; const JSON_IN_ARR = 4; const JSON_IN_OBJ = 8; const JSON_IN_CMT = 16; static function encode($var) { global $_G; switch (gettype($var)) { case 'boolean': return $var ? 'true' : 'false'; case 'NULL': return 'null'; case 'integer': return (int) $var; case 'double': case 'float': return rtrim(sprintf('%.16F',$var),'0'); case 'string': if(function_exists('diconv') && strtolower($_G['charset']) != 'utf-8') { $var = diconv($var, $_G['charset'], 'utf-8'); } if(function_exists('json_encode')) { return json_encode($var); } $ascii = ''; $strlen_var = strlen($var); 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: $ascii .= '\\'.$var{$c}; break; case (($ord_var_c >= 0x20) && ($ord_var_c <= 0x7F)): $ascii .= $var{$c}; break; case (($ord_var_c & 0xE0) == 0xC0): $char = pack('C*', $ord_var_c, ord($var{$c+1})); $c+=1; $utf16 = self::utf8ToUTF16BE($char); $ascii .= sprintf('\u%04s', bin2hex($utf16)); break; case (($ord_var_c & 0xF0) == 0xE0): $char = pack('C*', $ord_var_c, ord($var{$c+1}), ord($var{$c+2})); $c+=2; $utf16 = self::utf8ToUTF16BE($char); $ascii .= sprintf('\u%04s', bin2hex($utf16)); break; case (($ord_var_c & 0xF8) == 0xF0): $char = pack('C*', $ord_var_c, ord($var{$c+1}), ord($var{$c+2}), ord($var{$c+3})); $c+=3; $utf16 = self::utf8ToUTF16BE($char); $ascii .= sprintf('\u%04s', bin2hex($utf16)); break; case (($ord_var_c & 0xFC) == 0xF8): $char = pack('C*', $ord_var_c, ord($var{$c+1}), ord($var{$c+2}), ord($var{$c+3}), ord($var{$c+4})); $c+=4; $utf16 = self::utf8ToUTF16BE($char); $ascii .= sprintf('\u%04s', bin2hex($utf16)); break; case (($ord_var_c & 0xFE) == 0xFC): $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; $utf16 = self::utf8ToUTF16BE($char); $ascii .= sprintf('\u%04s', bin2hex($utf16)); break; } } return '"'.$ascii.'"'; case 'array': if (is_array($var) && count($var) && (array_keys($var) !== range(0, sizeof($var) - 1))) { return '{' . join(',', array_map(array('CJSON', 'nameValue'), array_keys($var), array_values($var))) . '}'; } return '[' . join(',', array_map(array('CJSON', 'encode'), $var)) . ']'; case 'object': if ($var instanceof Traversable) { $vars = array(); foreach ($var as $k=>$v) $vars[$k] = $v; } else $vars = get_object_vars($var); return '{' . join(',', array_map(array('CJSON', 'nameValue'), array_keys($vars), array_values($vars))) . '}'; default: return ''; } } static function nameValue($name, $value) { return self::encode(strval($name)) . ':' . self::encode($value); } static function reduceString($str) { $str = preg_replace(array( '#^\s*//(.+)$#m', '#^\s*/\*(.+)\*/#Us', '#/\*(.+)\*/\s*$#Us' ), '', $str); return trim($str); } static function decode($str, $useArray=true) { if(function_exists('json_decode')) { return json_decode($str, $useArray); } $str = self::reduceString($str); switch (strtolower($str)) { case 'true': return true; case 'false': return false; case 'null': return null; default: if (is_numeric($str)) { return ((float)$str == (integer)$str) ? (integer)$str : (float)$str; } elseif (preg_match('/^("|\').+(\1)$/s', $str, $m) && $m[1] == $m[2]) { $delim = substr($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)): $utf16 = chr(hexdec(substr($chrs, ($c+2), 2))) . chr(hexdec(substr($chrs, ($c+4), 2))); $utf8 .= self::utf16beToUTF8($utf16); $c+=5; break; case ($ord_chrs_c >= 0x20) && ($ord_chrs_c <= 0x7F): $utf8 .= $chrs{$c}; break; case ($ord_chrs_c & 0xE0) == 0xC0: $utf8 .= substr($chrs, $c, 2); ++$c; break; case ($ord_chrs_c & 0xF0) == 0xE0: $utf8 .= substr($chrs, $c, 3); $c += 2; break; case ($ord_chrs_c & 0xF8) == 0xF0: $utf8 .= substr($chrs, $c, 4); $c += 3; break; case ($ord_chrs_c & 0xFC) == 0xF8: $utf8 .= substr($chrs, $c, 5); $c += 4; break; case ($ord_chrs_c & 0xFE) == 0xFC: $utf8 .= substr($chrs, $c, 6); $c += 5; break; } } return $utf8; } elseif (preg_match('/^\[.*\]$/s', $str) || preg_match('/^\{.*\}$/s', $str)) { if ($str{0} == '[') { $stk = array(self::JSON_IN_ARR); $arr = array(); } else { if ($useArray) { $stk = array(self::JSON_IN_OBJ); $obj = array(); } else { $stk = array(self::JSON_IN_OBJ); $obj = new stdClass(); } } array_push($stk, array('what' => self::JSON_SLICE, 'where' => 0, 'delim' => false)); $chrs = substr($str, 1, -1); $chrs = self::reduceString($chrs); if ($chrs == '') { if (reset($stk) == self::JSON_IN_ARR) { return $arr; } else { return $obj; } } $strlen_chrs = strlen($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'] == self::JSON_SLICE))) { $slice = substr($chrs, $top['where'], ($c - $top['where'])); array_push($stk, array('what' => self::JSON_SLICE, 'where' => ($c + 1), 'delim' => false)); if (reset($stk) == self::JSON_IN_ARR) { array_push($arr, self::decode($slice,$useArray)); } elseif (reset($stk) == self::JSON_IN_OBJ) { if (preg_match('/^\s*(["\'].*[^\\\]["\'])\s*:\s*(\S.*),?$/Uis', $slice, $parts)) { $key = self::decode($parts[1],$useArray); $val = self::decode($parts[2],$useArray);