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dedecms文章跳转属性打开后页面空白原因分析及解决

<p>
        <span style='font-family: tahoma, arial, "Microsoft YaHei"; font-size: 14px;'>使用DEDECMS时,跳转页面什么都不显示,后台编辑时,也全是空白页。 </span><br style='font-family: tahoma, arial, "Microsoft YaHei"; font-size: 14px;'><span style='font-family: tahoma, arial, "Microsoft YaHei"; font-size: 14px;'>原因:使用header(location:url)函数跳转时,前面可能有输内容。 </span><br style='font-family: tahoma, arial, "Microsoft YaHei"; font-size: 14px;'><br style='font-family: tahoma, arial, "Microsoft YaHei"; font-size: 14px;'><strong style='font-family: tahoma, arial, "Microsoft YaHei"; font-size: 14px;'>解决办法</strong><span style='font-family: tahoma, arial, "Microsoft YaHei"; font-size: 14px;'>: </span><br style='font-family: tahoma, arial, "Microsoft YaHei"; font-size: 14px;'><span style='font-family: tahoma, arial, "Microsoft YaHei"; font-size: 14px;'>前台: </span></p>
<div class="msgheader" style='margin: 3px auto 0px; padding: 0px 3px; outline: none; line-height: 21.6px; clear: both; border-width: 1px; border-style: solid; border-color: rgb(0, 153, 204); background: rgb(246, 251, 255); overflow: hidden; font-family: tahoma, arial, "Microsoft YaHei";'>
        <p class="right">
                <span><u>复制代码</u></span></p>
        <p>
                代码如下:</p>
</div>
<p class="msgborder" style='margin: 0px auto 3px; padding: 0px 3px; outline: none; line-height: 25.2px; font-size: 14px; clear: both; border-right: 1px solid rgb(0, 153, 204); background: rgb(221, 237, 251); overflow: hidden; border-left: 1px solid rgb(0, 153, 204); word-break: break-all; border-bottom: 1px solid rgb(0, 153, 204); word-wrap: break-word; font-family: tahoma, arial, "Microsoft YaHei";'>
        <br>
        include\arc.archives.class.php,第499行header("location:{$this-&gt;Fields['redirecturl']}"); </p>
<p>
        <br style='font-family: tahoma, arial, "Microsoft YaHei"; font-size: 14px;'><span style='font-family: tahoma, arial, "Microsoft YaHei"; font-size: 14px;'>替换为 </span></p>
<div class="msgheader" style='margin: 3px auto 0px; padding: 0px 3px; outline: none; line-height: 21.6px; clear: both; border-width: 1px; border-style: solid; border-color: rgb(0, 153, 204); background: rgb(246, 251, 255); overflow: hidden; font-family: tahoma, arial, "Microsoft YaHei";'>
        <p class="right">
                <span><u>复制代码</u></span></p>
        <p>
                代码如下:</p>
</div>
<p class="msgborder" style='margin: 0px auto 3px; padding: 0px 3px; outline: none; line-height: 25.2px; font-size: 14px; clear: both; border-right: 1px solid rgb(0, 153, 204); background: rgb(221, 237, 251); overflow: hidden; border-left: 1px solid rgb(0, 153, 204); word-break: break-all; border-bottom: 1px solid rgb(0, 153, 204); word-wrap: break-word; font-family: tahoma, arial, "Microsoft YaHei";'>
        <br>
        echo '&lt;META HTTP-EQUIV="REFRESH" CONTENT="0; URL='.$this-&gt;Fields['redirecturl'].'"&gt;'; <br>
        后台:admin\archives_do.php,第33行header("location:{$gurl}?aid=$aid");替换为echo '&lt;META HTTP-EQUIV="REFRESH" CONTENT="0; URL='.$gurl.'?aid='.$aid.'"&gt;'; </p>
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