UCHome中关于公共函数(function_common.php)页面的代码分析(二)

/*

02.    [UCenter Home] (C) 2007-2008 Comsenz Inc.

03.    $Id: function_common.php 2009-10-20 21:12:00

04.    @author ymaozi

05.    @copyright http://www.codedesign.cn

06.    @uchome源码交流ＱＱ群：83400263

07.*/

08./**

09. * 获取表名

10. * @param string 表名

11. * @return string 加了表前缀的表名

12. */

13.function tname($name) {

14.    global $_SC;

15.    return $_SC['tablepre'].$name;

16.}

17. 

18./**

19. * 对话框

20. * @param string 转入的提示信息

21. * @param string 跳转的url

22. * @param int 跳转的时间

23. *

24. */

25.function showmessage($msgkey, $url_forward='', $second=1, $values=array()) {

26.    global $_SGLOBAL, $_SC, $_SCONFIG, $_TPL, $space, $_SN;

27. 

28.    obclean(); //清除缓存

29. 

30.    //去掉广告

31.    $_SGLOBAL['ad'] = array();

32. 

33.    //语言

34.    include_once(S_ROOT.'./language/lang_showmessage.php'); //引入语言文件

35.    if(isset($_SGLOBAL['msglang'][$msgkey])) { //$_SGLOBAL['msglang']数组中是否存在$msgkey

36.        $message = lang_replace($_SGLOBAL['msglang'][$msgkey], $values);

37.    } else {

38.        $message = $msgkey;

39.    }

40.    //手机

41.    if($_SGLOBAL['mobile']) {

42.        include template('showmessage');

43.        exit();

44.    }

45.    //显示

46.    if(empty($_SGLOBAL['inajax']) && $url_forward && empty($second)) {

47.        header("HTTP/1.1 301 Moved Permanently");

48.        header("Location: $url_forward");

49.    } else {

50.        if($_SGLOBAL['inajax']) {

51.            if($url_forward) {

52.                $message = "<a href=\"$url_forward\">$message</a><ajaxok>";

53.            }

54.            //$message = "<h1>".$_SGLOBAL['msglang']['box_title']."</h1><a href=\"javascript:;\" onclick=\"hideMenu();\" class=\"float_del\">X</a><div class=\"popupmenu_inner\">$message</div>";

55.            echo $message;

56.            ob_out();

57.        } else {

58.            if($url_forward) {

59.                $message = "<a href=\"$url_forward\">$message</a><script>setTimeout(\"window.location.href ='$url_forward';\", ".($second*1000).");</script>";

60.            }

61.            include template('showmessage');

62.        }

63.    }

64.    exit();

65.}

view sourceprint?

001./**

002. * 判断提交是否正确

003. * @param string 提交的按钮名

004. * @return bool

005. */

006.function submitcheck($var) {

007.        //如果存在$var的值并且提交方法为post

008.    if(!empty($_POST[$var]) && $_SERVER['REQUEST_METHOD'] == 'POST') {

009.        if((empty($_SERVER['HTTP_REFERER']) || preg_replace("/https?:\/\/([^\:\/]+).*/i", "\\1", $_SERVER['HTTP_REFERER']) == preg_replace("/([^\:]+).*/", "\\1", $_SERVER['HTTP_HOST'])) && $_POST['formhash'] == formhash()) {

010.            return true;

011.        } else {

012.            showmessage('submit_invalid');

013.        }

014.    } else {

015.        return false;

016.    }

017.}

018. 

019./**

020. * 添加数据

021. * @global array $_SGLOBAL

022. * @param string $tablename 表名

023. * @param array $insertsqlarr 要插入的数组

024. * @param int $returnid

025. * @param bool $replace

026. * @param int $silent

027. * @return string

028. */

029.function inserttable($tablename, $insertsqlarr, $returnid=0, $replace = false, $silent=0) {

030.    global $_SGLOBAL;

031. 

032.    $insertkeysql = $insertvaluesql = $comma = '';

033.    foreach ($insertsqlarr as $insert_key => $insert_value) {

034.        $insertkeysql .= $comma.'`'.$insert_key.'`'; //插入的键值

035.        $insertvaluesql .= $comma.'\''.$insert_value.'\''; //插入的值

036.        $comma = ', ';

037.    }

038.    $method = $replace?'REPLACE':'INSERT';

039.    $_SGLOBAL['db']->query($method.' INTO '.tname($tablename).' ('.$insertkeysql.') VALUES ('.$insertvaluesql.')', $silent?'SILENT':'');

040.    if($returnid && !$replace) { //如果$returnid为真，则返回插入的uid.

041.        return $_SGLOBAL['db']->insert_id();

042.    }

043.}

044. 

045./**

046. * 编辑信息

047. * @global array $_SGLOBAL

048. * @param string $tablename 更新的表名

049. * @param array $setsqlarr 更新的字段

050. * @param array $wheresqlarr where

051. * @param int $silent

052. */

053.function updatetable($tablename, $setsqlarr, $wheresqlarr, $silent=0) {

054.    global $_SGLOBAL;

055. 

056.    $setsql = $comma = '';

057.    foreach ($setsqlarr as $set_key => $set_value) {

058.        if(is_array($set_value)) {

059.            $setsql .= $comma.'`'.$set_key.'`'.'='.$set_value[0];

060.        } else {

061.            $setsql .= $comma.'`'.$set_key.'`'.'=\''.$set_value.'\'';

062.        }

063.        $comma = ', ';

064.    }

065.    $where = $comma = '';

066.    if(empty($wheresqlarr)) {

067.        $where = '1';

068.    } elseif(is_array($wheresqlarr)) {

069.        foreach ($wheresqlarr as $key => $value) {

070.            $where .= $comma.'`'.$key.'`'.'=\''.$value.'\'';

071.            $comma = ' AND ';

072.        }

073.    } else {

074.        $where = $wheresqlarr;

075.    }

076.    $_SGLOBAL['db']->query('UPDATE '.tname($tablename).' SET '.$setsql.' WHERE '.$where, $silent?'SILENT':'');

077.}

078. 

079./**

080. * 获取用户空间信息

081. * @global array $_SGLOBAL

082. * @global array $_SCONFIG

083. * @global array $_SN

084. * @param int or string $key uid或是用户名

085. * @param string $indextype 通过uid还是用户名开通用户名

086. * @param int $auto_open 是否自动创建空间

087. * @return array

088. */

089.function getspace($key, $indextype='uid', $auto_open=0) {

090.    global $_SGLOBAL, $_SCONFIG, $_SN;

091. 

092.    $var = "space_{$key}_{$indextype}";

093.    if(empty($_SGLOBAL[$var])) {

094.        $space = array();

095.        $query = $_SGLOBAL['db']->query("SELECT sf.*, s.* FROM ".tname('space')." s LEFT JOIN ".tname('spacefield')." sf ON sf.uid=s.uid WHERE s.{$indextype}='$key'");

096.        if(!$space = $_SGLOBAL['db']->fetch_array($query)) { //如果数据库中不存在传入uid的空间信息

097.            $space = array();

098.            if($indextype=='uid' && $auto_open) { //如果传入的是uid，并开启自动开通空间功能

099.                //自动开通空间

100.                include_once(S_ROOT.'./uc_client/client.php');

101.                if($user = uc_get_user($key, 1)) {//获取用户的信息

102.                    include_once(S_ROOT.'./source/function_space.php');

103.                    $space = space_open($user[0], addslashes($user[1]), 0, addslashes($user[2]));//开通空间

104.                }

105.            }

106.        }

107.        if($space) {    //如果存在空间

108.            $_SN[$space['uid']] = ($_SCONFIG['realname'] && $space['name'] && $space['namestatus'])?$space['name']:$space['username']; //获取实名或是用户名

109.            $space['self'] = ($space['uid']==$_SGLOBAL['supe_uid'])?1:0; //是否是自己的空间

110. 

111.            //好友缓存

112.            $space['friends'] = array();

113.            if(empty($space['friend'])) { //如果好友为空

114.                if($space['friendnum']>0) {//如果好友数大于0

115.                    $fstr = $fmod = '';

116.                                        //则在好友表中查找uid的好友

117.                    $query = $_SGLOBAL['db']->query("SELECT fuid FROM ".tname('friend')." WHERE uid='$space[uid]' AND status='1'");

118.                    while ($value = $_SGLOBAL['db']->fetch_array($query)) {

119.                        $space['friends'][] = $value['fuid'];

120.                        $fstr .= $fmod.$value['fuid'];

121.                        $fmod = ',';

122.                    }

123.                    $space['friend'] = $fstr;

124.                }

125.            } else {

126.                $space['friends'] = explode(',', $space['friend']);

127.            }

128. 

129.            $space['username'] = addslashes($space['username']);

130.            $space['name'] = addslashes($space['name']);

131.            $space['privacy'] = empty($space['privacy'])?(empty($_SCONFIG['privacy'])?array():$_SCONFIG['privacy']):unserialize($space['privacy']);

132. 

133.            //通知数

134.            $space['allnotenum'] = 0;

135.            foreach (array('notenum','pokenum','addfriendnum','mtaginvitenum','eventinvitenum','myinvitenum') as $value) {

136.                $space['allnotenum'] = $space['allnotenum'] + $space[$value];

137.            }

138.            if($space['self']) {

139.                $_SGLOBAL['member'] = $space;

140.            }

141.        }

142.        $_SGLOBAL[$var] = $space;

143.    }

144.    return $_SGLOBAL[$var];

145.}

146. 

147./**

148. * 通过用户名或真实姓名获取用户的uid

149. * @param string $name

150. * @return int

151. */

152.function getuid($name) {

153.    global $_SGLOBAL, $_SCONFIG;

154. 

155.    $wherearr[] = "(username='$name')";

156.    if($_SCONFIG['realname']) {//如果设置为实名，则能过实名来获取uid或通过用户名

157.        $wherearr[] = "(name='$name' AND namestatus = 1)";

158.    }

159.    $uid = 0;

160.    $query = $_SGLOBAL['db']->query("SELECT uid,username,name,namestatus FROM ".tname('space')." WHERE ".implode(' OR ', $wherearr)." LIMIT 1");

161.    if($space = $_SGLOBAL['db']->fetch_array($query)) {

162.        $uid = $space['uid'];

163.    }

164.    return $uid;

165.}

166. 

167./**

168. * 获取当前用户信息

169. */

170.function getmember() {

171.    global $_SGLOBAL, $space;

172. 

173.    if(empty($_SGLOBAL['member']) && $_SGLOBAL['supe_uid']) {

174.        if($space['uid'] == $_SGLOBAL['supe_uid']) {

175.            $_SGLOBAL['member'] = $space;

176.        } else {

177.            $_SGLOBAL['member'] = getspace($_SGLOBAL['supe_uid']);

178.        }

179.    }

180.}