Discuz二次开发必备技术手册

<a href="member.php?mod=logging&action=login" title="登录">登录</a>

<a href="member.php?mod=register" title="立即注册">立即注册</a>

忘记密码

<a href="javascript:;" title="找回密码">找回密码</a>

购买邀请码

misc.php?mod=buyinvitecode

JS跳转

onclick="window.location.href='home.php?mod=mobile&do=friend';"

JS更换class的名称

document.getElementById('idname').className='a';
document.getElementById('idname').style.display='block';
document.getElementById("idname").style.marginTop="30px";

批量替换超链接：

href="[^"]*"

过滤DZ代码：

preg_replace ("/\[[a-z][^\]]*\]|\[\/[a-z]+\]/i",'',preg_replace("/\[attach\]\d+\[\/attach\]/i",'',$message));

调用单个数据

$a = DB::result(DB::query("SELECT qi FROM ".DB::table('abc')." WHERE id = '1'"));

调用统计数据

$a = DB::result(DB::query("SELECT count(*) FROM ".DB::table('abc')." WHERE id = '1'"));

单数据表调用

$perpage = 20;
$curpage = empty ( $_GET['page'] ) ? 1 : intval ( $_GET['page'] );
$start = ($curpage-1)*$perpage;
$askcount = DB::result(DB::query("SELECT COUNT(*) FROM ".DB::table('forum_thread')." WHERE fid = '2' AND authorid > 1"));
//$asklist
$asklist = array();
if ($askcount) {
$query = DB::query("SELECT * FROM ".DB::table('forum_thread')." WHERE fid = '2' AND displayorder > -1 ORDER BY tid ASC LIMIT $start,$perpage");
while ($value = DB::fetch($query)) {
$asklist[] = $value;
}
}
$multi = multi($askcount, $perpage, $curpage, "这里填写跳转地址");

多数据表调用

$perpage = 40;
$curpage = empty ( $_GET['page'] ) ? 1 : intval ( $_GET['page'] );
$start = ($curpage-1)*$perpage;
$acount = DB::result(DB::query("SELECT count(*) FROM ".DB::table('forum_forum')." b LEFT JOIN ".DB::table('forum_forumfield')." bf ON bf.fid=b.fid WHERE b.type='sub' AND b.status = 3 AND bf.icon != ''"));
//$alist
$alist = array();
if ($acount) {
$query = DB::query("SELECT bf.*, b.* FROM ".DB::table('forum_forum')." b LEFT JOIN ".DB::table('forum_forumfield')." bf ON bf.fid=b.fid WHERE b.type='sub' AND b.status = 3 AND bf.icon != '' ORDER BY bf.shoplevel DESC, b.commoncredits DESC, bf.fid DESC LIMIT $start,$perpage");
while ($value = DB::fetch($query)) {
$alist[] = $value;
}
}
$multi = multi($acount, $perpage, $curpage, "这里填写跳转地址");

前台数据显示

<img src="$tupianfm"><br>$value[authorid]

取数据表中符合条件的第一条数据

$app=array();
$app=DB::fetch_first("select * from ".DB::table('abc')." where id='{$id}'");

人性化时间戳

截取字符字数

过滤DISCUZ代码

preg_replace ("/\[[a-z][^\]]*\]|\[\/[a-z]+\]/i",'',preg_replace("/\[attach\]\d+\[\/attach\]/i",'',$message));

写入数据库

if(submitcheck('tijiao')) {
$setarr = array(
'tid' => $_GET['topicid'],
'name' => $_POST['name'],
'position' => $_GET['position'],
'dateline' => $_G['timestamp'],
);
DB::insert('abc', $setarr, 1);
$query = DB::query("UPDATE ".DB::table('abc')." SET stickreply='1' WHERE tid='$tid'");
$query = DB::query("DELETE FROM ".DB::table('abc')." WHERE pid='$pid'");
showmessage('成功的提示信息', "跳转地址");
}

表单提交：

<form action="do.php" method="post" autocomplete="off">
<input type="hidden" value="{FORMHASH}" name="formhash" />
最低奖金：<input name="qi" type="text" value="" />　
最高奖金：<input name="end" type="text" value="" />　　
<button value="true" name="tijiao" type="submit">提交设置</button>
<input type="hidden" name="tijiao" value="true" />
</form>

以下两个时间格式是对等关系

date("Ymd",time()); 20150212
FROM_UNIXTIME(dateline, '%Y%m%d')

前者用于PHP，后者用于数据库调用的字段的格式化

调用图片附件

数据库循环嵌套调用

$slide[name]

ucenter无法登录：
打开uc_server/model/admin.php
找到第22行的

$this->cookie_status = 0;

改成

$this->cookie_status = isset($_COOKIE['sid']) ? 1 : 0;

无刷新切换li标签并且同时加载框架页面：

<script type="text/javascript">
var jq = jQuery.noConflict();
jq(function(){
jq("#changemenu>li").mouseover(function(){
jq("#changemenu>li").each(function(i){
jq(this).removeClass("current");
});
jq(this).addClass("current");
document.getElementById("changenr").innerHTML='<iframe src="do.php?id='+jq(this).attr('dataid')+'" height="350" width="1070" frameborder="0" scrolling="no"></iframe>';
}).mouseout(function(){
jq(this).addClass("current");
});
});
</script>
<ul id="changemenu">
<li class="current" dataid="1"></li>
<li dataid="2"></li>
</ul>
<div id="changenr"></div>

快速发帖

<a href="forum.php?mod=misc&action=nav">发布新话题</a>

DISCUZ JSON数据解析获取

$str = 'a:2:{s:8:"sitename";s:8:"源码哥";s:3:"pic";s:12:"ymg6.jpg";}';
$newstr = str_replace("\","",$str);
$data = unserialize($newstr);
echo $data[sitename];//输出结果为源码哥

DISCUZ云平台站点同步提示DNS错误解决方法：打开source\plugin\manyou\Service\Client\Restful.php，找到代码：

$result = $this->_fsockopen($url, 0, $data, '', false, $ip, 5);

修改为：

$result = $this->_fsockopen($url, 0, $data, '', false, $ip, 30);

LI标签列表自适应宽度JS实现代码（去除每行最后一个li标签的右边距）：

<script type="text/javascript" src="http://www.banban.so/new/bang/uploads/146383669567393.js"></script>
<style>ul,li{margin:0; padding:0; list-style:none;}.list{width:100%; margin:0 auto;}.list li{width:32%; float:left; margin-right:2%; background:#0092B9; text-align:center; color:#fff; height:300px; line-height:300px; margin-bottom:10px;}</style>
<div class="list">
<ul>
<li>DZ教程网</li>
<li>DZ教程网</li>
<li>DZ教程网</li>
<li>DZ教程网</li>
<li>DZ教程网</li>
<li>DZ教程网</li>
</ul>
</div>
<script type="text/javascript">
$('.list li:nth-child(3n)').css('marginRight', '0');
</script>

常用词汇

select 选择
count 总数
table 表
where 条件
result 结果
perpage 每页
curpage 当前页
update 更新
delete 删除
insert 写入
dateline 日期
time 时间
echo 输出 <?php echo '123'; ?>
multi 分页函数
if 如果
else 否则
elseif
start 起始
limit 限制 limit 10
DESC 倒序
ASC 正序

活动帖发布页面核心处理文件：

source\class\extend\extend_thread_activity.php

分类信息解析文件

source\function\function_threadsort.php

Discuz模版运行php代码

或

echo'源码哥';

标签获得焦点后触发js

onfocus="ymgcom()"

标签失去焦点后触发js

onblur="ymgcom();"

密码输出1*****6

//原密码为$_GET['password']
$password = preg_replace("/^(.{".round(strlen($_GET['password']) / 4)."})(.+?)(.{".round(strlen($_GET['password']) / 6)."})$/s", "\\1***\\3", $_GET['password']);
echo $password;

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