分类信息有效期设置,如下图:

第一步:增加字段gqtime类型选择日期。

投稿表单替换html代码(增加字段时请留空)内容修改为:

<select name="gqtime" id="gqtime"><option value="<?echo date("Y-m-d",strtotime("+7day")); ?><?=DoReqValue($tbname,'gqtime',stripSlashes($r[gqtime]))?>">7天后过期</option><option value="<?echo date("Y-m-d",strtotime("+1month")); ?><?=DoReqValue($tbname,'gqtime',stripSlashes($r[gqtime]))?>">一个月后过期</option><option value="<?echo date("Y-m-d",strtotime("+3month")); ?><?=DoReqValue($tbname,'gqtime',stripSlashes($r[gqtime]))?>">三个月后过期</option><option value="<?echo date("Y-m-d",strtotime("+6month")); ?><?=DoReqValue($tbname,'gqtime',stripSlashes($r[gqtime]))?>" selected>六个月后过期</option><option value="<?echo date("Y-m-d",strtotime("+20year")); ?><?=DoReqValue($tbname,'gqtime',stripSlashes($r[gqtime]))?>">长期有效</option></select>

第二步:打开e/class/connect.php文件,找到 //栏目链接。在其上面一行加入如下代码:

//时间        $odate = round(((strtotime($r[gqtime])-strtotime(date('Y-m-d')))/86400),0);         if ($odate>0)                 {                 $diffTime = ''; //                 }         else if ($odate==0)                 {                 $diffTime = '今天到期 ';                 }         else                  {                 $diffTime = '<span class="expire">已过期</span> ';                 }        $listtemp = str_replace ('[!--diffTime--]', $diffTime, $listtemp);

第三步:信息调用:

列表页调用:[!–diffTime–]

内容页引用JS:

<script language="javascript" src="images/date.js"></script> 

在需要显示的地方调用:

<script>check_tdate('[!--gqtime--]')</script>

date.js 文件代码如下:

// JavaScript Documentfunction check_tdate(odate){ var checkArray= new Array() ;//nowArray    = odate.split(" ");checkArray    = odate.split("-"); checkDate   = new  Date(checkArray[0],checkArray[1],checkArray[2]);var nowTime   = new Date();// 现在时间var the_year  = nowTime.getYear(); var the_month = nowTime.getMonth() + 1; var the_day   = nowTime.getDate();nowTime    = new  Date(the_year,the_month,the_day); var thesecond = 24 * 60 * 60 *1000 ; var diffTime  = (nowTime - checkDate)/thesecond;//计算天数if (diffTime>0){myreturn ="<div style='position:absolute;z-index:100;margin-left:150px;'><img src=../../../images/guoqi.gif></div>";}else if (diffTime==0){myreturn = '';}else  {diffTime=0-diffTime;myreturn = '';}//alert(myreturn); document.write(''+myreturn+'')}

已过期图片: