Discuz! X缓存扩展机制说明
Discuz! X系列中加入了全新的缓存机制，我们在开发插件或者是增加新的功能的时候可以很方便的为系统增加一个全新的缓存，并在任何页面中使用。
下面以一个 名为 example 的缓存为例，详细说一下这个机制。
新建一个文件：
<?php
if(!defined('IN_DISCUZ')) {
exit('Access Denied');
}
function build_cache_example() {
$data = array();
$data[] = 'Hello World';
$data[] = 'Hello Discuz!';
save_syscache('example', $data);
}
?>
这就是一个标准的生成缓存的文件。其中有几点重要的为：
需要生成名字为 example 的缓存，那么这个文件的名字需要命名为：cache_example.php
文件中的 build_cache_xxxx 类似的这个函数名应为 build_cache_example
save_syscache('xxxx', $data);应该为save_syscache('example', $data);
为了安全性，文件头部必须增加
if(!defined('IN_DISCUZ')) {
exit('Access Denied');
}
其中 build_cache_example 函数就是主要的对需要缓存的数据做处理的函数，所有的组织数据，都可以放到这个函数里面执行，或者放到多个小函数，然后统一在这个函数中执行。而且结尾必须要以save_syscache('example', $data); 结尾，才能写入缓存数据。
现在缓存文件有了，我们可以把 cache_example.php 文件放到 source/function/cache 目录中。这样在的 Discuz! 文件中就可以调用这个缓存了。
更新缓存的方法：
require_once libfile('function/cache');
updatecache('example');
调用缓存的方法：
require_once libfile('function/cache');
loadcache('example');
执行后，缓存在：$_G['cache']['example']变量中；
测试代码：
require_once libfile('function/cache');
updatecache('example');
loadcache('example');
print_r($_G['cache']['example']);exit;
输出结果：
Array ( => Hello World => Hello Discuz! ) 例子：
example.php
<?php
require_once './include/common.inc.php';
require_once './include/cache.func.php';
//参数说明:缓存标识名, 内置数据取得标识, 缓存数据(string), 缓存前缀.
//writetocache('文件名', $cachenames, $cachedata = '', $prefix = 'cache_')
// 第一种模式. 指针转成变量,写入到test.php当中, 目录在forundata/cache/
writetocache('test','',getcachevars(array('var'=>'变量值','phps'=>'discuz.net')), $prefix = 'caches_');
//第二种模式,这种比较好, 生成一个数组, 写在文件test2.php中.
writetocache('test2', '', '$_DCACHE[\'settings\'] = '.arrayeval(range(1,20)).";\n\n", $prefix = 'caches_');
//第三种模式,$cachedata内容是什么, 就写入是什么, 很强悍.
writetocache('test3', '',"array('var1'=>'mysql php','var2'=>'fenanr')", $prefix = 'caches_');
//第四种模式,当没有$prefix值时, 默认生成cache_xxxx.php的缓存命名.
writetocache('test4', '',"array('var1'=>'php 6','var2'=>'discuz')");
?>
cache.func.php文件详解
<?php
/*
(C)2001-2009 Comsenz Inc.
This is NOT a freeware, use is subject to license terms
$Id: cache.func.php 21311 2009-11-26 01:35:43Z liulanbo $
*/
define('DISCUZ_KERNEL_VERSION', '7.2');
define('DISCUZ_KERNEL_RELEASE', '20091126');
function updatecache($cachename = '') {
//分别引入 mysql操作库存,论坛名称,数据库前缀,最大论坛时间(估计是授权用户专用)
global $db, $bbname, $tablepre, $maxbdays;
//静态化一下数组,比如$cachename = setings 就读到这个数组 'settings' => array('settings'),
static $cachescript = array
(
'settings' => array('settings'),
'forums' => array('forums'),
'icons' => array('icons'),
'stamps' => array('stamps'),
'ranks' => array('ranks'),
'usergroups' => array('usergroups'),
'request' => array('request'),
'medals' => array('medals'),
'magics' => array('magics'),
'topicadmin' => array('modreasons', 'stamptypeid'),
'archiver' => array('advs_archiver'),
'register' => array('advs_register', 'ipctrl'),
'faqs' => array('faqs'),
'secqaa' => array('secqaa'),
'censor' => array('censor'),
'ipbanned' => array('ipbanned'),
'smilies' => array('smilies_js'),
'forumstick' => array('forumstick'),
'index' => array('announcements', 'onlinelist', 'forumlinks', 'advs_index', 'heats'),
'forumdisplay' => array('smilies', 'announcements_forum', 'globalstick', 'forums', 'icons', 'onlinelist', 'advs_forumdisplay', 'forumstick'),
'viewthread' => array('smilies', 'smileytypes', 'forums', 'usergroups', 'ranks', 'stamps', 'bbcodes', 'smilies', 'advs_viewthread', 'tags_viewthread', 'custominfo', 'groupicon', 'focus', 'stamps'),
'post' => array('bbcodes_display', 'bbcodes', 'smileycodes', 'smilies', 'smileytypes', 'icons', 'domainwhitelist'),
'profilefields' => array('fields_required', 'fields_optional'),
'viewpro' => array('fields_required', 'fields_optional', 'custominfo'),
'bbcodes' => array('bbcodes', 'smilies', 'smileytypes'),
);
//当最大时间有值时,就将在$cachescript 增加两段
if($maxbdays) {
$cachescript['birthdays'] = array('birthdays');
$cachescript['index'][] = 'birthdays_index';
}
// 组成更新数组.
$updatelist = empty($cachename) ? array_values($cachescript) : (is_array($cachename) ? array('0' => $cachename) : array(array('0' => $cachename)));
$updated = array();
// 现在循环. 由于是二维数组, 所以循环两次.
foreach($updatelist as $value) {
foreach($value as $cname) {
//判断如果$updated数组为假,或者$updated中没有$cname的值,就进入, 目的是为了防止重复
if(empty($updated) || !in_array($cname, $updated)) {
$updated[] = $cname; //进来一次, 就丢进数组, 以便循环中再次使用.
getcachearray($cname); // 取得相应的值,并且生成缓存.
}
}
}
// 假如是空参数进入, 就对所有的缓存标识作判断.
foreach($cachescript as $script => $cachenames) {
if(empty($cachename) || (!is_array($cachename) && in_array($cachename, $cachenames)) || (is_array($cachename) && array_intersect($cachename, $cachenames))) {
$cachedata = '';
$query = $db->query("SELECT data FROM {$tablepre}caches WHERE cachename in(".implodeids($cachenames).")");
while($data = $db->fetch_array($query)) {
$cachedata .= $data['data'];
}
writetocache($script, $cachenames, $cachedata);
}
}
//假如参数为空,或者参数为styles 就处理模板风格等缓存
if(!$cachename || $cachename == 'styles') {
$stylevars = $styledata = $styleicons = array();
$defaultstyleid = $db->result_first("SELECT value FROM {$tablepre}settings WHERE variable = 'styleid'");
list(, $imagemaxwidth) = explode("\t", $db->result_first("SELECT value FROM {$tablepre}settings WHERE variable = 'zoomstatus'"));
$imagemaxwidth = $imagemaxwidth ? $imagemaxwidth : 600;
$imagemaxwidthint = intval($imagemaxwidth);
$query = $db->query("SELECT sv.* FROM {$tablepre}stylevars sv LEFT JOIN {$tablepre}styles s ON s.styleid = sv.styleid AND (s.available=1 OR s.styleid='$defaultstyleid')");
while($var = $db->fetch_array($query)) {
$stylevars[$var['styleid']][$var['variable']] = $var['substitute'];
}
$query = $db->query("SELECT s.*, t.directory AS tpldir FROM {$tablepre}styles s LEFT JOIN {$tablepre}templates t ON s.templateid=t.templateid WHERE s.available=1 OR s.styleid='$defaultstyleid'");
while($data = $db->fetch_array($query)) {
$data = array_merge($data, $stylevars[$data['styleid']]);
$datanew = array();
$data['imgdir'] = $data['imgdir'] ? $data['imgdir'] : 'images/default';
$data['styleimgdir'] = $data['styleimgdir'] ? $data['styleimgdir'] : $data['imgdir'];
foreach($data as $k => $v) {
if(substr($k, -7, 7) == 'bgcolor') {
$newkey = substr($k, 0, -7).'bgcode';
$datanew[$newkey] = setcssbackground($data, $k);
}
}
$data = array_merge($data, $datanew);
$styleicons[$data['styleid']] = $data['menuhover'];
if(strstr($data['boardimg'], ',')) {
$flash = explode(",", $data['boardimg']);
$flash = trim($flash);
$flash = preg_match('/^http:\/\//i', $flash) ? $flash : $data['styleimgdir'].'/'.$flash;
$data['boardlogo'] = "<embed src="".$flash."" width="".trim($flash)."" height="".trim($flash)."" type="application/x-shockwave-flash" wmode="transparent"></embed>";
} else {
$data['boardimg'] = preg_match('/^http:\/\//i', $data['boardimg']) ? $data['boardimg'] : $data['styleimgdir'].'/'.$data['boardimg'];
$data['boardlogo'] = "<img src="$data" alt="$bbname" border="0" />";
}
$data['bold'] = $data['nobold'] ? 'normal' : 'bold';
$contentwidthint = intval($data['contentwidth']);
$contentwidthint = $contentwidthint ? $contentwidthint : 600;
if(substr(trim($data['contentwidth']), -1, 1) != '%') {
if(substr(trim($imagemaxwidth), -1, 1) != '%') {
$data['imagemaxwidth'] = $imagemaxwidthint > $contentwidthint ? $contentwidthint : $imagemaxwidthint;
} else {
$data['imagemaxwidth'] = intval($contentwidthint * $imagemaxwidthint / 100);
}
} else {
if(substr(trim($imagemaxwidth), -1, 1) != '%') {
$data['imagemaxwidth'] = '%'.$imagemaxwidthint;
} else {
$data['imagemaxwidth'] = ($imagemaxwidthint > $contentwidthint ? $contentwidthint : $imagemaxwidthint).'%';
}
}
$data['verhash'] = random(3);
$styledata[] = $data;
}
foreach($styledata as $data) {
$data['styleicons'] = $styleicons;
writetocache($data['styleid'], '', getcachevars($data, 'CONST'), 'style_');
writetocsscache($data);
}
}
//假如参数为空,或者参数为usergroups 就处理用户组等缓存
if(!$cachename || $cachename == 'usergroups') {
@include_once DISCUZ_ROOT.'forumdata/cache/cache_settings.php';
$threadplugins = !isset($_DCACHE['settings']) ? $GLOBALS['threadplugins'] : $_DCACHE['settings'];
$allowthreadplugin = $threadplugins ? unserialize($db->result_first("SELECT value FROM {$tablepre}settings WHERE variable='allowthreadplugin'")) : array();
$query = $db->query("SELECT * FROM {$tablepre}usergroups u
LEFT JOIN {$tablepre}admingroups a ON u.groupid=a.admingid");
while($data = $db->fetch_array($query)) {
$ratearray = array();
if($data['raterange']) {
foreach(explode("\n", $data['raterange']) as $rating) {
$rating = explode("\t", $rating);
$ratearray[$rating] = array('min' => $rating, 'max' => $rating, 'mrpd' => $rating);
}
}
$data['raterange'] = $ratearray;
$data['grouptitle'] = $data['color'] ? '<font color="'.$data['color'].'">'.$data['grouptitle'].'</font>' : $data['grouptitle'];
$data['grouptype'] = $data['type'];
$data['grouppublic'] = $data['system'] != 'private';
$data['groupcreditshigher'] = $data['creditshigher'];
$data['groupcreditslower'] = $data['creditslower'];
$data['allowthreadplugin'] = $threadplugins ? $allowthreadplugin[$data['groupid']] : array();
unset($data['type'], $data['system'], $data['creditshigher'], $data['creditslower'], $data['color'], $data['groupavatar'], $data['admingid']);
writetocache($data['groupid'], '', getcachevars($data), 'usergroup_');
}
}
//假如参数为空,或者参数为admingroups 就处理管理用户组等缓存
if(!$cachename || $cachename == 'admingroups') {
$query = $db->query("SELECT * FROM {$tablepre}admingroups");
while($data = $db->fetch_array($query)) {
writetocache($data['admingid'], '', getcachevars($data), 'admingroup_');
}
}
if(!$cachename || $cachename == 'plugins') {
$query = $db->query("SELECT pluginid, available, adminid, name, identifier, datatables, directory, copyright, modules FROM {$tablepre}plugins");
while($plugin = $db->fetch_array($query)) {
$data = array_merge($plugin, array('modules' => array()), array('vars' => array()));
$plugin['modules'] = unserialize($plugin['modules']);
if(is_array($plugin['modules'])) {
foreach($plugin['modules'] as $module) {
$data['modules'][$module['name']] = $module;
}
}
$queryvars = $db->query("SELECT variable, value FROM {$tablepre}pluginvars WHERE pluginid='$plugin'");
while($var = $db->fetch_array($queryvars)) {
$data['vars'][$var['variable']] = $var['value'];
}
writetocache($plugin['identifier'], '', "\$_DPLUGIN['$plugin'] = ".arrayeval($data), 'plugin_');
}
}
//假如参数为空,或者参数为threadsorts 就处理主题信息等缓存
if(!$cachename || $cachename == 'threadsorts') {
$sortlist = $templatedata = array();
$query = $db->query("SELECT t.typeid AS sortid, tt.optionid, tt.title, tt.type, tt.unit, tt.rules, tt.identifier, tt.description, tv.required, tv.unchangeable, tv.search, tv.subjectshow
FROM {$tablepre}threadtypes t
LEFT JOIN {$tablepre}typevars tv ON t.typeid=tv.sortid
LEFT JOIN {$tablepre}typeoptions tt ON tv.optionid=tt.optionid
WHERE t.special='1' AND tv.available='1'
ORDER BY tv.displayorder");
while($data = $db->fetch_array($query)) {
$data['rules'] = unserialize($data['rules']);
$sortid = $data['sortid'];
$optionid = $data['optionid'];
$sortlist[$sortid][$optionid] = array(
'title' => dhtmlspecialchars($data['title']),
'type' => dhtmlspecialchars($data['type']),
'unit' => dhtmlspecialchars($data['unit']),
'identifier' => dhtmlspecialchars($data['identifier']),
'description' => dhtmlspecialchars($data['description']),
'required' => intval($data['required']),
'unchangeable' => intval($data['unchangeable']),
'search' => intval($data['search']),
'subjectshow' => intval($data['subjectshow']),
);
if(in_array($data['type'], array('select', 'checkbox', 'radio'))) {
if($data['rules']['choices']) {
$choices = array();
foreach(explode("\n", $data['rules']['choices']) as $item) {
list($index, $choice) = explode('=', $item);
$choices = trim($choice);
}
$sortlist[$sortid][$optionid]['choices'] = $choices;
} else {
$typelist[$sortid][$optionid]['choices'] = array();
}
} elseif(in_array($data['type'], array('text', 'textarea'))) {
$sortlist[$sortid][$optionid]['maxlength'] = intval($data['rules']['maxlength']);
} elseif($data['type'] == 'image') {
$sortlist[$sortid][$optionid]['maxwidth'] = intval($data['rules']['maxwidth']);
$sortlist[$sortid][$optionid]['maxheight'] = intval($data['rules']['maxheight']);
} elseif($data['type'] == 'number') {
$sortlist[$sortid][$optionid]['maxnum'] = intval($data['rules']['maxnum']);
$sortlist[$sortid][$optionid]['minnum'] = intval($data['rules']['minnum']);
}
}
$query = $db->query("SELECT typeid, description, template, stemplate FROM {$tablepre}threadtypes WHERE special='1'");
while($data = $db->fetch_array($query)) {
$templatedata[$data['typeid']] = $data['template'];
$stemplatedata[$data['typeid']] = $data['stemplate'];
$threaddesc[$data['typeid']] = dhtmlspecialchars($data['description']);
}
foreach($sortlist as $sortid => $option) {
writetocache($sortid, '', "\$_DTYPE = ".arrayeval($option).";\n\n\$_DTYPETEMPLATE = "".str_replace('"', '"', $templatedata[$sortid])."";\n\n\$_DSTYPETEMPLATE = "".str_replace('"', '"', $stemplatedata[$sortid])."";\n", 'threadsort_');
}
}
}
// 这是css缓存文件生成需要的处理css背景颜色函数
function setcssbackground(&$data, $code) {
$codes = explode(' ', $data[$code]);
$css = $codevalue = '';
for($i = 0; $i < count($codes); $i++) {
if($i < 2) {
if($codes[$i] != '') {
if($codes[$i]{0} == '#') {
$css .= strtoupper($codes[$i]).' ';
$codevalue = strtoupper($codes[$i]);
} elseif(preg_match('/^http:\/\//i', $codes[$i])) {
$css .= 'url("'.$codes[$i].'") ';
} else {
$css .= 'url("'.$data['styleimgdir'].'/'.$codes[$i].'") ';
}
}
} else {
$css .= $codes[$i].' ';
}
}
$data[$code] = $codevalue;
$css = trim($css);
return $css ? 'background: '.$css : '';
}
// 更新系统配置缓存
function updatesettings() {
global $_DCACHE;
if(isset($_DCACHE['settings']) && is_array($_DCACHE['settings'])) {
writetocache('settings', '', '$_DCACHE[\'settings\'] = '.arrayeval($_DCACHE['settings']).";\n\n");
}
}
// 写入缓存文件, 详解一下.
function writetocache($script, $cachenames, $cachedata = '', $prefix = 'cache_') {
global $authkey;
//假如$cachenames是数组,并且$cachedata为假
if(is_array($cachenames) && !$cachedata) {
foreach($cachenames as $name) {
//赋予内置函数的指定标识, 即可有数据返回
$cachedata .= getcachearray($name, $script);
}
}
$dir = DISCUZ_ROOT.'./forumdata/cache/';
//如果缓存目录不存在, 就生成一个.
if(!is_dir($dir)) {
@mkdir($dir, 0777);
}
if($fp = @fopen("$dir$prefix$script.php", 'wb')) {
fwrite($fp, "<?php\n//Discuz! cache file, DO NOT modify me!".
"\n//Created: ".date("M j, Y, G:i").
"\n//Identify: ".md5($prefix.$script.'.php'.$cachedata.$authkey)."\n\n$cachedata?>");
fclose($fp);
} else {
exit('Can not write to cache files, please check directory ./forumdata/ and ./forumdata/cache/ .');
}
}
// 更新css缓存生成过程中, 里面的路径问题, 参数为css.htm的内容.
function writetocsscache($data) {
$cssdata = '';
foreach(array('_common' => array('css_common', 'css_append'),
'_special' => array('css_special', 'css_special_append'),
'_wysiwyg' => array('css_wysiwyg', '_wysiwyg_append'),
'_seditor' => array('css_seditor', 'css_seditor_append'),
'_calendar' => array('css_calendar', 'css_calendar_append'),
'_moderator' => array('css_moderator', 'css_moderator_append'),
'_script' => array('css_script', 'css_script_append'),
'_task_newbie' => array('css_task_newbie', 'css_task_newbie_append')
) as $extra => $cssfiles) {
$cssdata = '';
foreach($cssfiles as $css) {
$cssfile = DISCUZ_ROOT.'./'.$data['tpldir'].'/'.$css.'.htm';
!file_exists($cssfile) && $cssfile = DISCUZ_ROOT.'./templates/default/'.$css.'.htm';
if(file_exists($cssfile)) {
$fp = fopen($cssfile, 'r');
$cssdata .= @fread($fp, filesize($cssfile))."\n\n";
fclose($fp);
}
}
$cssdata = preg_replace("/\{(+)\}/e", '\$data', $cssdata);
$cssdata = preg_replace("/<\?.+?\?>\s*/", '', $cssdata);
$cssdata = !preg_match('/^http:\/\//i', $data['styleimgdir']) ? str_replace("url("$data", "url("../../$data", $cssdata) : $cssdata;
$cssdata = !preg_match('/^http:\/\//i', $data['styleimgdir']) ? str_replace("url($data", "url(../../$data", $cssdata) : $cssdata;
$cssdata = !preg_match('/^http:\/\//i', $data['imgdir']) ? str_replace("url("$data", "url("../../$data", $cssdata) : $cssdata;
$cssdata = !preg_match('/^http:\/\//i', $data['imgdir']) ? str_replace("url($data", "url(../../$data", $cssdata) : $cssdata;
if($extra != '_script') {
$cssdata = preg_replace(array('/\s*([,;:\{\}])\s*/', '/[\t\n\r]/', '/\/\*.+?\*\//'), array('\\1', '',''), $cssdata);
}
if(@$fp = fopen(DISCUZ_ROOT.'./forumdata/cache/style_'.$data['styleid'].$extra.'.css', 'w')) {
fwrite($fp, $cssdata);
fclose($fp);
} else {
exit('Can not write to cache files, please check directory ./forumdata/ and ./forumdata/cache/ .');
}
}
}
// 将js文件复制到缓存目录.
function writetojscache() {
$dir = DISCUZ_ROOT.'include/js/';
$dh = opendir($dir);
$remove = array(
'/(^|\r|\n)\/\*.+?(\r|\n)\*\/(\r|\n)/is',
'/\/\/note.+?(\r|\n)/i',
'/\/\/debug.+?(\r|\n)/i',
'/(^|\r|\n)(\s|\t)+/',
'/(\r|\n)/',
);
while(($entry = readdir($dh)) !== false) {
if(fileext($entry) == 'js') {
$jsfile = $dir.$entry;
$fp = fopen($jsfile, 'r');
$jsdata = @fread($fp, filesize($jsfile));
fclose($fp);
$jsdata = preg_replace($remove, '', $jsdata);
if(@$fp = fopen(DISCUZ_ROOT.'./forumdata/cache/'.$entry, 'w')) {
fwrite($fp, $jsdata);
fclose($fp);
} else {
exit('Can not write to cache files, please check directory ./forumdata/ and ./forumdata/cache/ .');
}
}
}
}
//取得缓存数组, 内置. 标识名,及文件名.
function getcachearray($cachename, $script = '') {
global $db, $timestamp, $tablepre, $timeoffset, $maxbdays, $smcols, $smrows, $charset, $scriptlang;
//省略上千代码.
}
//组成缓存文件需要的数据数组.
function getcachevars($data, $type = 'VAR') {
$evaluate = '';
foreach($data as $key => $val) {
if(!preg_match("/^*$/", $key)) {
continue;
}
if(is_array($val)) {
$evaluate .= "\$key = ".arrayeval($val).";\n";
} else {
$val = addcslashes($val, '\'\\');
$evaluate .= $type == 'VAR' ? "\$key = '$val';\n" : "define('".strtoupper($key)."', '$val');\n";
}
}
return $evaluate;
}
//取得广告设置的内容数组.
function advertisement($range) {
global $db, $tablepre, $timestamp;
$advs = array();
$query = $db->query("SELECT * FROM {$tablepre}advertisements WHERE available>'0' AND starttime<='$timestamp' ORDER BY displayorder");
if($db->num_rows($query)) {
while($adv = $db->fetch_array($query)) {
if(in_array($adv['type'], array('footerbanner', 'thread'))) {
$parameters = unserialize($adv['parameters']);
$position = isset($parameters['position']) && in_array($parameters['position'], array(2, 3)) ? $parameters['position'] : 1;
$type = $adv['type'].$position;
} else {
$type = $adv['type'];
}
$adv['targets'] = in_array($adv['targets'], array('', 'all')) ? ($type == 'text' ? 'forum' : (substr($type, 0, 6) == 'thread' ? 'forum' : 'all')) : $adv['targets'];
foreach(explode("\t", $adv['targets']) as $target) {
if($range == 'index' && substr($target, 0, 3) == 'gid') {
$advs['cat'][$type][] = $adv['advid'];
$advs['items'][$adv['advid']] = $adv['code'];
}
$target = $target == '0' || $type == 'intercat' ? 'index' : (in_array($target, array('all', 'index', 'forumdisplay', 'viewthread', 'register', 'redirect', 'archiver')) ? $target : ($target == 'forum' ? 'forum_all' : 'forum_'.$target));
if((($range == 'forumdisplay' && !in_array($adv['type'], array('thread', 'interthread'))) || $range == 'viewthread') && substr($target, 0, 6) == 'forum_') {
if($adv['type'] == 'thread') {
foreach(isset($parameters['displayorder']) ? explode("\t", $parameters['displayorder']) : array('0') as $postcount) {
$advs['type'][$type.'_'.$postcount][$target][] = $adv['advid'];
}
} else {
$advs['type'][$type][$target][] = $adv['advid'];
}
$advs['items'][$adv['advid']] = $adv['code'];
} elseif($range == 'all' && in_array($target, array('all', 'redirect'))) {
$advs[$target]['type'][$type][] = $adv['advid'];
$advs[$target]['items'][$adv['advid']] = $adv['code'];
} elseif($range == 'index' && $type == 'intercat') {
$parameters = unserialize($adv['parameters']);
foreach(is_array($parameters['position']) ? $parameters['position'] : array('0') as $position) {
$advs['type'][$type][$position][] = $adv['advid'];
$advs['items'][$adv['advid']] = $adv['code'];
}
} elseif($target == $range || ($range == 'index' && $target == 'forum_all' && $type == 'text')) {
$advs['type'][$type][] = $adv['advid'];
$advs['items'][$adv['advid']] = $adv['code'];
}
}
}
}
return $advs;
}
// 简单判断.
function pluginmodulecmp($a, $b) {
return $a['displayorder'] > $b['displayorder'] ? 1 : -1;
}
// 计算长宽的函数
function smthumb($size, $smthumb = 50) {
if($size <= $smthumb && $size <= $smthumb) {
return array('w' => $size, 'h' => $size);
}
$sm = array();
$x_ratio = $smthumb / $size;
$y_ratio = $smthumb / $size;
if(($x_ratio * $size) < $smthumb) {
$sm['h'] = ceil($x_ratio * $size);
$sm['w'] = $smthumb;
} else {
$sm['w'] = ceil($y_ratio * $size);
$sm['h'] = $smthumb;
}
return $sm;
}
// 处理缓存生成时部分内容样式的解析
function parsehighlight($highlight) {
if($highlight) {
$colorarray = array('', 'red', 'orange', 'yellow', 'green', 'cyan', 'blue', 'purple', 'gray');
$string = sprintf('%02d', $highlight);
$stylestr = sprintf('%03b', $string);
$style = ' style="';
$style .= $stylestr ? 'font-weight: bold;' : '';
$style .= $stylestr ? 'font-style: italic;' : '';
$style .= $stylestr ? 'text-decoration: underline;' : '';
$style .= $string ? 'color: '.$colorarray[$string] : '';
$style .= '"';
} else {
$style = '';
}
return $style;
}
// 这就是传说的array的立体型输出.
function arrayeval($array, $level = 0) {
if(!is_array($array)) {
return "'".$array."'";
}
if(is_array($array) && function_exists('var_export')) {
return var_export($array, true);
}
$space = '';
for($i = 0; $i <= $level; $i++) {
$space .= "\t";
}
$evaluate = "Array\n$space(\n";
$comma = $space;
if(is_array($array)) {
foreach($array as $key => $val) {
$key = is_string($key) ? '\''.addcslashes($key, '\'\\').'\'' : $key;
$val = !is_array($val) && (!preg_match("/^\-?\d*$/", $val) || strlen($val) > 12) ? '\''.addcslashes($val, '\'\\').'\'' : $val;
if(is_array($val)) {
$evaluate .= "$comma$key => ".arrayeval($val, $level + 1);
} else {
$evaluate .= "$comma$key => $val";
}
$comma = ",\n$space";
}
}
$evaluate .= "\n$space)";
return $evaluate;
}
?>
页:
[1]