织梦首页调用随机文章定时自动更新,提高收录速度及权重

  {dede:arclist sort=’rand’ titlelen=48 row=16}
    <li><a href="[field:arcurl/]" title="[field:title/]" target="_blank">[field:title/]</a></li>
    {/dede:arclist}

<?php
    function sp_input( $text )
    {
    $text = trim( $text );
    $text = htmlspecialchars( $text );
    if (!get_magic_quotes_gpc())
    return addslashes( $text );
    else
    return $text;
    }
    $autotime = 3600;//自动更新时间，单位为秒，这里我设为一小时，大家可以自行更改。 
    $fpath = "../data/last_time.inc";//记录更新时间文件，如果不能达到目的，请检查是否有读取权限。 
    include( $fpath );
    if( empty($last_time))
    $last_time = 0;
    if( sp_input($_GET['renew'])=="now")
    $last_time = 0;
    if((time()-$last_time)>=$autotime )
    {
    define('DEDEADMIN', ereg_replace("[/\\]{1,}",'/',dirname(__FILE__) ) );
    require_once(DEDEADMIN."/../include/common.inc.php");
    require_once(DEDEINC."/arc.partview.class.php");
    /*
    $row = $dsql->GetOne("Select * From dede_homepageset");
    $dsql->Close();
    $templet=$row['templet'];
    $position=$row['position'];
    */
    $templet = “tnbjh/index.htm”;//这里是首页模板位置，当前是dede默认首面位置。www.dede58.com织梦模板 
    $position = "../index.html";
    $homeFile = dirname(__FILE__)."/".$position;
    $homeFile = str_replace("\\", "/", $homeFile );
    $homeFile = str_replace( "//", "/", $homeFile );
    $pv = new PartView();
    $pv ->SetTemplet( $cfg_basedir.$cfg_templets_dir."/".$templet );
    $pv -> SaveToHtml( $homeFile );
    $pv -> Close();
    $file = fopen( $fpath, "w");
    fwrite( $file, "<?php\n");
    fwrite( $file,"\$last_time=".time().";\n");
    fwrite( $file, '?>' );
    fclose( $file );
    }
    ?>