jiliangzhifu/protected/class/client.php

<?php

class client {

    private $ps_api_url, $ps_auth_key, $ps_vsersion;

    /**
     * 析构函数
     * @param $ps_api_url 接口域名
     * @param $ps_auth_key 加密密匙
     */
    public function __construct($ps_api_url = 'http://sso.smartcost.com.cn/', $ps_auth_key = '', $ps_vsersion = '1') {
	$this->ps_api_url = $ps_api_url;
	$this->ps_auth_key = $ps_auth_key;
	$this->ps_vsersion = $ps_vsersion;
    }

    /**
     * 用户注册
     * @param string $username 	用户名
     * @param string $password 	密码
     * @param string $email		email
     * @param string $regip		注册ip
     * @param string $random	密码随机数
     * @return int {-1:用户名已经存在 ;-2:email已存在;-3:email格式错误;-4:用户名禁止注册;-5:邮箱禁止注册；int(uid):成功}
     */
    public function ps_member_register($username, $password, $email, $regip = '', $random = '') {
	if (!$this->_is_email($email)) {
	    return -3;
	}

	return $this->_ps_send('register', array('username' => $username, 'password' => $password, 'email' => $email, 'regip' => $regip, 'random' => $random));
    }

    /**
     * 用户登陆
     * @param string $username 	用户名
     * @param string $password 	密码
     * @param int $isemail	email
     * @return int {-2;密码错误;-1:用户名不存在;array(userinfo):用户信息}
     */
    public function zhsso_member_login($username, $password, $isemail = 0) {
	if ($isemail) {
	    if (!$this->_is_email($username)) {
		return '-3';
	    }
	    $return = $this->_ps_send('login', array('email' => $username, 'userpasswd' => $password));
	} else {
	    $return = $this->_ps_send('login', array('username' => $username, 'userpasswd' => $password));
	}
	return $return;
    }

    /**
     * 同步登陆
     * @param string $uid
     * @return string javascript用户同步登陆js
     */
    public function ps_member_synlogin($uid) {
	$uid = intval($uid);
	return $this->_ps_send('synlogin', array('uid' => $uid));
    }

    /**
     * 同步退出
     * @param string $uid
     * @return string javascript用户同步退出js
     */
    public function ps_member_synlogout() {
	return $this->_ps_send('synlogout', array());
    }

    /**
     * 编辑用户
     * @param string $username		用户名
     * @param string $email			email
     * @param string $password		旧密码
     * @param string $newpassword	新密码
     * @param int $uid				phpsso用户uid
     * @param string $random	 	密码随机数
     * @return int {-1:用户不存在;-2:旧密码错误;-3:email已经存在 ;-4:email格式错误;1:成功;0:未作修改}
     */
    public function zhsso_member_edit($uid = '', $password = '', $newpassword = '', $useranswer = '') {
///	if ($email && !$this->_is_email($email)) {
//	    return -4;
//	}
	// TODO:增加判断输出返回值
	return $this->_ps_send('edit', array('uid' => $uid, 'password' => $password, 'newpassword' => $newpassword, 'useranswer' => $useranswer));
    }

    public function setPayWay($uid, $idcards, $alipay, $tenpay) {
	return $this->_ps_send('payway', array('uid' => $uid, 'idbank' => $idcards, 'alipay' => $alipay, 'tenpay' => $tenpay));
    }

    /**
     * 删除用户头像
     * @param int $uid				phpsso用户uid
     * @return int {1:成功;0:失败}
     */
    public function ps_deleteavatar($uid) {
	return $this->_ps_send('deleteavatar', array('uid' => $uid));
    }

    /**
     * 获取用户信息
     * @param $mix 用户id/用户名/email
     * @param $type {1:用户id;2:用户名;3:email}
     * @return $mix {-1:用户不存在;userinfo:用户信息}
     */
    public function ps_get_member_info($mix, $type = 1) {
	if ($type == 1) {
	    $userinfo = $this->_ps_send('getuserinfo', array('uid' => $mix));
	} elseif ($type == 2) {
	    $userinfo = $this->_ps_send('getuserinfo', array('username' => $mix));
	} elseif ($type == 3) {
	    if (!$this->_is_email($mix)) {
		return -4;
	    }
	    $userinfo = $this->_ps_send('getuserinfo', array('email' => $mix));
	}
	if ($userinfo) {
	    return $userinfo;
	} else {
	    return -1;
	}
    }

    /**
     * 删除用户
     * @param mix {1:用户id;2:用户名;3:email} 如果是用户id可以为数组
     * @return int {-1:用户不存在;1:删除成功}
     */
    public function ps_delete_member($mix, $type = 1) {
	if ($type == 1) {
	    $res = $this->_ps_send('delete', array('uid' => $mix));
	} elseif ($type == 2) {
	    $res = $this->_ps_send('delete', array('username' => $mix));
	} elseif ($type == 3) {
	    if (!$this->_is_email($mix)) {
		return -4;
	    }
	    $res = $this->_ps_send('delete', array('email' => $mix));
	}
	return $res;
    }

    /**
     * 检查用户是否可以注册
     * @param string $username
     * @return int {-4：用户名禁止注册;-1:用户名已经存在 ;1:成功}
     */
    public function ps_checkname($username) {
	return $this->_ps_send('checkname', array('username' => $username));
    }

    /**
     * 检查邮箱是否可以注册
     * @param string $email
     * @return int {-1:email已经存在 ;-5:邮箱禁止注册;1:成功}
     */
    public function ps_checkemail($email) {
	return $this->_ps_send('checkemail', array('email' => $email));
    }

    /**
     * 获取用户信息通过COOKIE UID
     */
    public function zhsso_getuserinfo() {
	$uid = $this->authcode($_COOKIE[Doo::conf()->COOKIEPRE_WK . '_userid']);
	return $this->_ps_send('getuserinfo', array('uid' => $uid));
    }

    /**
     * 获取用户信息通过COOKIE UID
     */
    public function zhsso_getuserlist($uid) {

	return $this->_ps_send('getuserlist', array('uid' => $uid));
    }

    public function zhsso_checkauth($auth = "") {

	return $this->_ps_send('checkauth', array('auth' => $auth));
    }

    /**
     * 获取用户信息通过COOKIE UID
     */
    public function zhsso_getuserinfo_by_uid($uid = 0) {

	return $this->_ps_send('getuserinfo', array('uid' => $uid));
    }

    /**
     * 获取应用列表信息
     */
    public function zhsso_getUserbyName($uname) {
	return $this->_ps_send('getuserinfo', array('username' => $uname));
    }

    public function zhsso_getUserbyEmail($email) {
	return $this->_ps_send('getuserinfo', array('email' => $email));
    }

    /**
     * 获取积分兑换比例列表
     */
    public function ps_getcreditlist() {
	return $this->_ps_send('getcredit', array());
    }

    /**
     * 兑换积分
     * 用于何其他应用之间积分兑换
     * @param int $uid			phpssouid
     * @param int $from			本系统积分类型id
     * @param int $toappid 		目标系统应用appid
     * @param int $to			目标系统积分类型id
     * @param int $credit		本系统扣除积分数
     * @return bool 			{1:成功;0:失败}
     */
    public function ps_changecredit($uid, $from, $toappid, $to, $credit) {
	return $this->_ps_send('changecredit', array('uid' => $uid, 'from' => $from, 'toappid' => $toappid, 'to' => $to, 'credit' => $credit));
    }

    /**
     * 根据phpsso uid获取头像url
     * @param int $uid 用户id
     * @return array 四个尺寸用户头像数组
     */
    public function ps_getavatar($uid) {
	$dir1 = ceil($uid / 10000);
	$dir2 = ceil($uid % 10000 / 1000);
	$url = $this->ps_api_url . 'data/avatar/' . $dir1 . '/' . $dir2 . '/' . $uid . '/';
	$avatar = array('180' => $url . '180x180.jpg', '90' => $url . '90x90.jpg', '45' => $url . '45x45.jpg', '30' => $url . '30x30.jpg');
	return $avatar;
    }

    /**
     * 获取上传头像flash的html代码
     * @param int $uid 用户id
     */
    public function ps_getavatar_upload_html($uid) {
	$auth_data = $this->authcode($uid, 'ENCODE');
//	echo $auth_data;
//	list($a, $encodestr) = explode('=', $auth_data);
	$upurl = base64_encode($this->ps_api_url . 'api/uploadavatar/' . rawurlencode($auth_data));
//	$upurl = base64_encode($this->ps_api_url . '/index.php?m=phpsso&c=index&a=uploadavatar&auth_data=' . $auth_data);
	$str = <<<EOF
				<div id="phpsso_uploadavatar_flash"></div>
				<script language="javascript" type="text/javascript" src="{$this->ps_api_url}global/v1/js/swfobject.js"></script>
				<script type="text/javascript">
					var flashvars = {
						'upurl':"{$upurl}&callback=return_avatar&"
					};
					var params = {
						'align':'middle',
						'play':'true',
						'loop':'false',
						'scale':'showall',
						'wmode':'window',
						'devicefont':'true',
						'id':'Main',
						'bgcolor':'#ffffff',
						'name':'Main',
						'allowscriptaccess':'always'
					};
					var attributes = {

					};
					swfobject.embedSWF("{$this->ps_api_url}global/v1/swf/main.swf", "phpsso_uploadavatar_flash", "490", "434", "9.0.0","{$this->ps_api_url}global/v1/swf/expressInstall.swf", flashvars, params, attributes);

					function return_avatar(data) {
						if(data == 1) {
							window.location.reload();
						}
					}
				</script>
EOF;
	return $str;
    }

    /**
     * 字符串加密、解密函数
     *
     *
     * @param	string	$txt		字符串
     * @param	string	$operation	ENCODE为加密，DECODE为解密，可选参数，默认为ENCODE，
     * @param	string	$key		密钥：数字、字母、下划线
     * @param	string	$expiry		过期时间
     * @return	string
     */
    function sys_auth($string, $operation = 'ENCODE', $key = '', $expiry = 0) {
	$key_length = 4;
	$key = md5($key != '' ? $key : $this->ps_auth_key);
	$fixedkey = hash('md5', $key);
	$egiskeys = md5(substr($fixedkey, 16, 16));
	$runtokey = $key_length ? ($operation == 'ENCODE' ? substr(hash('md5', microtime(true)), -$key_length) : substr($string, 0, $key_length)) : '';
	$keys = hash('md5', substr($runtokey, 0, 16) . substr($fixedkey, 0, 16) . substr($runtokey, 16) . substr($fixedkey, 16));
	$string = $operation == 'ENCODE' ? sprintf('%010d', $expiry ? $expiry + time() : 0) . substr(md5($string . $egiskeys), 0, 16) . $string : base64_decode(substr($string, $key_length));

	$i = 0;
	$result = '';
	$string_length = strlen($string);
	for ($i = 0; $i < $string_length; $i++) {
	    $result .= chr(ord($string{$i}) ^ ord($keys{$i % 32}));
	}
	if ($operation == 'ENCODE') {
	    return $runtokey . str_replace('=', '', base64_encode($result));
	} else {
	    if ((substr($result, 0, 10) == 0 || substr($result, 0, 10) - time() > 0) && substr($result, 10, 16) == substr(md5(substr($result, 26) . $egiskeys), 0, 16)) {
		return substr($result, 26);
	    } else {
		return '';
	    }
	}
    }

    /**
     * 将数组转换为字符串
     *
     * @param	array	$data		数组
     * @param	bool	$isformdata	如果为0，则不使用new_stripslashes处理，可选参数，默认为1
     * @return	string	返回字符串，如果，data为空，则返回空
     */
    public function array2string($data, $isformdata = 1) {
	if ($data == '')
	    return '';
	if ($isformdata)
	    $data = new_stripslashes($data);
	return var_export($data, TRUE);
    }

    public function auth_data($data) {
	$s = $sep = '';
//	foreach ($data as $k => $v) {
//	    if (is_array($v)) {
//		$s2 = $sep2 = '';
//		foreach ($v as $k2 => $v2) {
//		    $s2 .= "$sep2{$k}[$k2]=" . $this->_ps_stripslashes($v2);
//		    $sep2 = '&';
//		}
//		$s .= $sep . $s2;
//	    } else {
//		$s .= "$sep$k=" . $this->_ps_stripslashes($v);
//	    }
//	    $sep = '&';
//	}
	$s = http_build_query($data);
	$auth_s = 'data=' . urlencode($this->authcode($s, 'ENCODE'));
	return $auth_s;
    }

    /**
     * 发送数据
     * @param $action 操作
     * @param $data 数据
     */
    private function _ps_send($action, $data = null) {
	return $this->_ps_post($this->ps_api_url . "api/" . $action, 500000, $this->auth_data($data));
    }

    /**
     *  post数据
     *  @param string $url		post的url
     *  @param int $limit		返回的数据的长度
     *  @param string $post		post数据，字符串形式username='dalarge'&password='123456'
     *  @param string $cookie	模拟 cookie，字符串形式username='dalarge'&password='123456'
     *  @param string $ip		ip地址
     *  @param int $timeout		连接超时时间
     *  @param bool $block		是否为阻塞模式
     *  @return string			返回字符串
     */
    private function _ps_post($url, $limit = 0, $post = '', $cookie = '', $ip = '', $timeout = 15, $block = true) {
	$return = '';
	$matches = parse_url($url);
	$host = $matches['host'];
//	$path = $matches['path'] ? $matches['path'] . ($matches['query'] ? '?' . $matches['query'] : '') : '/';
	$path = $matches['path'] ? $matches['path'] : '/';
	$port = !empty($matches['port']) ? $matches['port'] : 80;
	$siteurl = $this->_get_url();
	if ($post) {
	    $out = "POST $path HTTP/1.1\r\n";
	    $out .= "Accept: */*\r\n";
	    $out .= "Referer: " . $siteurl . "\r\n";
	    $out .= "Accept-Language: zh-cn\r\n";
	    $out .= "Content-Type: application/x-www-form-urlencoded\r\n";
	    $out .= "User-Agent: $_SERVER[HTTP_USER_AGENT]\r\n";
	    $out .= "Host: $host\r\n";
	    $out .= 'Content-Length: ' . strlen($post) . "\r\n";
	    $out .= "Connection: Close\r\n";
	    $out .= "Cache-Control: no-cache\r\n";
	    $out .= "Cookie: $cookie\r\n\r\n";
	    $out .= $post;
	} else {
	    $out = "GET $path HTTP/1.1\r\n";
	    $out .= "Accept: */*\r\n";
	    $out .= "Referer: " . $siteurl . "\r\n";
	    $out .= "Accept-Language: zh-cn\r\n";
	    $out .= "User-Agent: $_SERVER[HTTP_USER_AGENT]\r\n";
	    $out .= "Host: $host\r\n";
	    $out .= "Connection: Close\r\n";
	    $out .= "Cookie: $cookie\r\n\r\n";
	}
	$fp = @fsockopen(($ip ? $ip : $host), $port, $errno, $errstr, $timeout);
	if (!$fp)
	    return '';

	stream_set_blocking($fp, $block);
	stream_set_timeout($fp, $timeout);
	@fwrite($fp, $out);
	$status = stream_get_meta_data($fp);

	if ($status['timed_out'])
	    return '';
	while (!feof($fp)) {
	    if (($header = @fgets($fp)) && ($header == "\r\n" || $header == "\n"))
		break;
	}

	$stop = false;
	while (!feof($fp) && !$stop) {
	    $data = fread($fp, ($limit == 0 || $limit > 8192 ? 8192 : $limit));
	    $return .= $data;
	    if ($limit) {
		$limit -= strlen($data);
		$stop = $limit <= 0;
	    }
	}
	@fclose($fp);

	//部分虚拟主机返回数值有误，暂不确定原因，过滤返回数据格式
	$return_arr = explode("\n", $return);
	if (isset($return_arr[1])) {
	    $return = trim($return_arr[1]);
	}
	unset($return_arr);

	return $return;
    }

    /**
     * 过滤字符串
     * @param $string
     */
    private function _ps_stripslashes($string) {
	!defined('MAGIC_QUOTES_GPC') && define('MAGIC_QUOTES_GPC', get_magic_quotes_gpc());
	if (MAGIC_QUOTES_GPC) {
	    return stripslashes($string);
	} else {
	    return $string;
	}
    }

    /**
     * 获取当前页面完整URL地址
     */
    private function _get_url() {
	$sys_protocal = isset($_SERVER['SERVER_PORT']) && $_SERVER['SERVER_PORT'] == '443' ? 'https://' : 'http://';
	$php_self = $_SERVER['PHP_SELF'] ? $this->_safe_replace($_SERVER['PHP_SELF']) : $this->_safe_replace($_SERVER['SCRIPT_NAME']);
	$path_info = isset($_SERVER['PATH_INFO']) ? $this->_safe_replace($_SERVER['PATH_INFO']) : '';
	$relate_url = isset($_SERVER['REQUEST_URI']) ? $this->_safe_replace($_SERVER['REQUEST_URI']) : $php_self . (isset($_SERVER['QUERY_STRING']) ? '?' . $this->_safe_replace($_SERVER['QUERY_STRING']) : $path_info);
	return $sys_protocal . (isset($_SERVER['HTTP_HOST']) ? $_SERVER['HTTP_HOST'] : '') . $relate_url;
    }

    /**
     * 安全过滤函数
     *
     * @param $string
     * @return string
     */
    private function _safe_replace($string) {
	$string = str_replace('%20', '', $string);
	$string = str_replace('%27', '', $string);
	$string = str_replace('%2527', '', $string);
	$string = str_replace('*', '', $string);
	$string = str_replace('"', '&quot;', $string);
	$string = str_replace("'", '', $string);
	$string = str_replace('"', '', $string);
	$string = str_replace(';', '', $string);
	$string = str_replace('<', '&lt;', $string);
	$string = str_replace('>', '&gt;', $string);
	$string = str_replace("{", '', $string);
	$string = str_replace('}', '', $string);
	$string = str_replace('\\', '', $string);
	return $string;
    }

    /**
     * 判断email格式是否正确
     * @param $string email
     */
    private function _is_email($email) {
	return strlen($email) > 6 && preg_match("/^[\w\-\.]+@[\w\-\.]+(\.\w+)+$/", $email);
    }

    /**
     * 判断email格式是否正确
     * @param $string email
     */
    public function getUserName() {
	$username = self::get_cookie('_username');
	if ($username) {
	    return $username;
	} else {
	    return FALSE;
	}
    }

    /**
     * 判断email格式是否正确
     * @param $string email
     */
    public function getAuth() {
	$auth = self::get_cookie('auth');
	if ($auth) {
	    return $auth;
	} else {
	    return FALSE;
	}
    }

    /**
     * 判断email格式是否正确
     * @param $string email
     */
    public function getUserID() {
	$userid = self::get_cookie('_userid');
	if ($userid) {
	    return $userid;
	} else {
	    return FALSE;
	}
    }

    public function get_cookie($var, $default = '') {
	$varvar = Doo::conf()->COOKIEPRE_WK . $var;
	return isset($_COOKIE[$varvar]) ? $this->authcode($_COOKIE[$varvar], 'DECODE') : $default;
    }

    /**
     *
     * 网络传输、cookie加密函数
     * @param type $string
     * @param type $operation
     * @param type $key
     * @param type $expiry
     * @return string
     */
    function authcode($string, $operation = 'DECODE', $key = '', $expiry = 0) {
	$ckey_length = 4;
	$key = md5($key != '' ? $key : Doo::conf()->AUTHKEY);
	$keya = md5(substr($key, 0, 16));
	$keyb = md5(substr($key, 16, 16));
	$keyc = $ckey_length ? ($operation == 'DECODE' ? substr($string, 0, $ckey_length) : substr(md5(microtime()), -$ckey_length)) : '';

	$cryptkey = $keya . md5($keya . $keyc);
	$key_length = strlen($cryptkey);

	$string = $operation == 'DECODE' ? base64_decode(substr($string, $ckey_length)) : sprintf('%010d', $expiry ? $expiry + time() : 0) . substr(md5($string . $keyb), 0, 16) . $string;
	$string_length = strlen($string);

	$result = '';
	$box = range(0, 255);

	$rndkey = array();
	for ($i = 0; $i <= 255; $i++) {
	    $rndkey[$i] = ord($cryptkey[$i % $key_length]);
	}

	for ($j = $i = 0; $i < 256; $i++) {
	    $j = ($j + $box[$i] + $rndkey[$i]) % 256;
	    $tmp = $box[$i];
	    $box[$i] = $box[$j];
	    $box[$j] = $tmp;
	}

	for ($a = $j = $i = 0; $i < $string_length; $i++) {
	    $a = ($a + 1) % 256;
	    $j = ($j + $box[$a]) % 256;
	    $tmp = $box[$a];
	    $box[$a] = $box[$j];
	    $box[$j] = $tmp;
	    $result .= chr(ord($string[$i]) ^ ($box[($box[$a] + $box[$j]) % 256]));
	}

	if ($operation == 'DECODE') {
	    if ((substr($result, 0, 10) == 0 || substr($result, 0, 10) - time() > 0) && substr($result, 10, 16) == substr(md5(substr($result, 26) . $keyb), 0, 16)) {
		return substr($result, 26);
	    } else {
		return '';
	    }
	} else {
	    return $keyc . str_replace('=', '', base64_encode($result));
	}
    }

    public function logoutz() {
//	header('P3P: CP="CURa ADMa DEVa PSAo PSDo OUR BUS UNI PUR INT DEM STA PRE COM NAV OTC NOI DSP COR"');
	setcookie(Doo::conf()->COOKIEPRE_WK . 'auth', '', 0, '/', Doo::conf()->APP_URL, 0);
	setcookie(Doo::conf()->COOKIEPRE_WK . '_username', '', 0, '/', Doo::conf()->APP_URL, 0);
	setcookie(Doo::conf()->COOKIEPRE_WK . '_userid', '', 0, '/', Doo::conf()->APP_URL, 0);
    }

    /**
     * 用户登陆
     * @param string $username 	用户名
     * @param string $password 	密码
     * @param int $isemail	email
     * @return int {-2;密码错误;-1:用户名不存在;array(userinfo):用户信息}
     */
    public function ps_member_login($username, $password, $isemail = 0) {
	if ($isemail) {
	    if (!$this->_is_email($username)) {
		return -3;
	    }
	    $return = $this->_ps_send('login', array('email' => $username, 'password' => $password));
	} else {
	    $return = $this->_ps_send('login', array('username' => $username, 'password' => $password));
	}
	return $return;
    }

//    public function wksetcookit($username, $password, $isemail = 0) {
//        setcookie(Doo::conf()->COOKIEPRE_WK . 'auth', $client->authcode($ObjUserInfo[0]->id . "\t" . $this->clientIP(), 'ENCODE'), 0, '/', '192.168.1.140', 0);
//        setcookie(Doo::conf()->COOKIEPRE_WK . '_userid', $client->authcode($ObjUserInfo[0]->id, 'ENCODE'), 0, '/', '192.168.1.140', 0);
//        setcookie(Doo::conf()->COOKIEPRE_WK . '_username', $client->authcode($ObjUserInfo[0]->username, 'ENCODE'), 0, '/', '192.168.1.140', 0);
//    }

    /**
     * 用户登陆
     * @param string $username 	用户名
     * @param string $password 	密码
     * @param int $isemail	email
     * @return int {-2;密码错误;-1:用户名不存在;array(userinfo):用户信息}
     */
    public function zhsso_member_bank($userid) {
	if (empty($userid))
	    return false;
	return $this->_ps_send('getBank', array('uid' => $userid));
    }

    /**
     * 用户登陆
     * @param string $username 	用户名
     * @param string $password 	密码
     * @param int $isemail	email
     * @return int {-2;密码错误;-1:用户名不存在;array(userinfo):用户信息}
     */
    public function getPayOrder($userid) {
	if (empty($userid))
	    return false;
	return $this->_ps_send('getPayOrder', array('uid' => $userid));
    }

    /**
     * 金额增加
     * @param string $userid 	用户唯一标示符
     * @param string $m 	操作金额
     * @param int $appid	应用程序ID，标示操作来源{wenku,ask}
     * @return int {0;金额增加失败;1:金额增加成功;}
     */
    public function zhsso_member_madd($userid, $m, $appid) {
	if (empty($userid) || empty($m) || empty($appid))
	    return false;
	return $this->_ps_send('madd', array('uid' => $userid, 'bank' => $m, 'appid' => $appid));
    }

    /**
     * 金额减少
     * @param string $userid 	用户唯一标示符
     * @param string $m 	操作金额
     * @param int $appid	应用程序ID，标示操作来源{wenku,ask}
     * @return int {-1;金额不够减;0;金额减少失败;1:金额减少成功;}
     */
    public function zhsso_member_msub($userid, $m, $appid) {
	if (empty($userid) || empty($m) || empty($appid))
	    return false;
	return $this->_ps_send('msub', array('uid' => $userid, 'bank' => $m, 'appid' => $appid));
    }

}

?>