Discuz!源代码分析系列:./include/global.func.php(4)
转自www.discuz.net 作者：郭鑫 复制内容到剪贴板代码:/**
* 用来计算星星月亮太阳显示的
* @para $num 等级数
*
*/
function showstars($num) {
global $starthreshold;
$alt = 'alt="Rank: '.$num.'"';
if(empty($starthreshold)) {
for($i = 0; $i < $num; $i++) {
echo '';
}
} else {
for($i = 3; $i > 0; $i--) {
$numlevel = intval($num / pow($starthreshold, ($i - 1)));
$num = ($num % pow($starthreshold, ($i - 1)));
for($j = 0; $j < $numlevel; $j++) {
echo '';
}
}
}
}
复制内容到剪贴板代码:
/**
* 得到站点
*
* @return string 如: http://discuz.net
*/
function site() {
return $_SERVER['HTTP_HOST'];
}
复制内容到剪贴板代码:
/**
* 这个看成函数重载也无妨，功能就是查找$haystack是不是在$needle中存在
* @para string $haystack
* @para string $needle
*
* @return boolean
*/
function strexists($haystack, $needle) {
return !(strpos($haystack, $needle) === FALSE);
}
复制内容到剪贴板代码:
/**
* 验证码转换，具体功能用处还没研究
* @para string $seccode 验证码
*
*/
function seccodeconvert(&$seccode) {
$seccode = substr($seccode, -6);
$s = sprintf('%04s', base_convert($seccode, 10, 24));
$seccode = '';
$seccodeunits = 'BCEFGHJKMPQRTVWXY2346789';
for($i = 0; $i < 4; $i++) {
$unit = ord($s{$i});
$seccode .= ($unit >= 0x30 && $unit$tplrefresh)) {
if(@filemtime($tplfile) > @filemtime($objfile)) {
require_once DISCUZ_ROOT.'./include/template.func.php';
parse_template($file, $templateid, $tpldir);
}
}
return $objfile;
}
复制内容到剪贴板代码:
/**
* 得到url中的sid
* @para string $url
* @para string tag
* @para int $wml
*
* @return string
*/
function transsid($url, $tag = '', $wml = 0) {
global $sid;
$tag = stripslashes($tag);
if(!$tag || (!preg_match("/^(http:\/\/|mailto:|#|javascript)/i", $url) && !strpos($url, 'sid='))) {
if($pos = strpos($url, '#')) {
$urlret = substr($url, $pos);
$url = substr($url, 0, $pos);
} else {
$urlret = '';
}
$url .= (strpos($url, '?') ? ($wml ? '&' : '&') : '?').'sid='.$sid.$urlret;
}
return $tag.$url;
}
复制内容到剪贴板代码:
/**
* 生成主题分类下拉列表
* @para int $curtypeid 当前选择的id
*
* @return string
*/
function typeselect($curtypeid = 0) {
if($threadtypes = $GLOBALS['forum']['threadtypes']) {
$html = ' ';
foreach($threadtypes['types'] as $typeid => $name) {
$html .= ''.strip_tags($name).'';
}
$html .= '';
return $html;
} else {
return '';
}
}
复制内容到剪贴板代码:
/**
* 更新积分用到的函数
* @para string $uids 要更新的uid
* @para array $creditsarray 要更新的积分
* @para int $coef 单位
* @para string $extrasql 附加的sql语句
*
*/
function updatecredits($uids, $creditsarray, $coef = 1, $extrasql = '') {
if($uids && ((!empty($creditsarray) && is_array($creditsarray)) || $extrasql)) {
global $db, $tablepre;
$creditsadd = $comma = '';
foreach($creditsarray as $id => $addcredits) {
$creditsadd .= $comma.'extcredits'.$id.'=extcredits'.$id.'+('.intval($addcredits).')*('.$coef.')';
$comma = ', ';
}
if($creditsadd || $extrasql) {
$db->query("UPDATE {$tablepre}members SET $creditsadd ".($creditsadd && $extrasql ? ', ' : '')." $extrasql WHERE uid IN ('$uids')", 'UNBUFFERED');
}
}
}
复制内容到剪贴板代码:
/**
* 把session更新一下，更新了如下的表：onlinetime, members, sessions
*/
function updatesession() {
if(!empty($GLOBALS['sessionupdated'])) {
return TRUE;
}
global $db, $tablepre, $sessionexists, $sessionupdated, $sid, $onlineip, $discuz_uid, $discuz_user, $timestamp, $lastactivity, $seccode,
$pvfrequence, $spageviews, $lastolupdate, $oltimespan, $onlinehold, $groupid, $styleid, $invisible, $discuz_action, $fid, $tid, $bloguid;
$fid = intval($fid);
$tid = intval($tid);
if($oltimespan && $discuz_uid && $lastactivity && $timestamp - ($lastolupdate ? $lastolupdate : $lastactivity) > $oltimespan * 60) {
$lastolupdate = $timestamp;
$db->query("UPDATE {$tablepre}onlinetime SET total=total+'$oltimespan', thismonth=thismonth+'$oltimespan', lastupdate='$timestamp' WHERE uid='$discuz_uid' AND lastupdate
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