用php制作多个站点地图

Question

我有一个网站，我定期添加一个页面的日志。目前，我正在遍历我的数据库以获取几百个URL，然后将它们添加到sitemap-1中，然后获取下一个几百个URL并将它们添加到sitemap-2中。这一切都是我亲手完成的。

我想使用while循环来创建所有新页面，并将它们插入到数据库中。它应该检查我当前的站点地图-x，以确定是否达到了URL计数阈值，然后创建一个新的sitemap++并开始添加页面，或者只是添加到当前站点地图。

我如何才能做到这一点呢？

我有一些代码来创建网站地图，但我不确定如何检查它是否与2000个网址，然后继续创建一个新的。

<?php


/* create a dom document with encoding utf8 */
$domtree = new DOMDocument('1.0', 'UTF-8');

/* create the root element of the xml tree */
$xmlRoot = $domtree->createElement("urlset");
$xmlRoot -> appendChild(new DomAttr('xmlns',  'http://www.sitemaps.org/schemas/sitemap/0.9'));
$xmlRoot -> appendChild(new DomAttr('xmlns:xsi', 'http://www.w3.org/2001/XMLSchema-instance'));
$xmlRoot -> appendChild(new DomAttr('xsi:schemaLocation', 'http://www.sitemaps.org/schemas/sitemap/0.9 http://www.sitemaps.org/schemas/sitemap/0.9/sitemap.xsd'));

/* append it to the document created */
$xmlRoot = $domtree->appendChild($xmlRoot);

/* tehloop */
while ($row = mysql_fetch_array($result)){
    $currentTrack = $domtree->createElement("url");
    $currentTrack = $xmlRoot->appendChild($currentTrack);
    $currentTrack->appendChild($domtree->createElement('loc','website'));
    $currentTrack->appendChild($domtree->createElement('changefreq','weekly'));
    $currentTrack->appendChild($domtree->createElement('priority','1.0'));
}

/* save the xml sitemap */
$domtree->formatOutput = true;
$domtree->preserveWhitespace = false;
$domtree->save('sitemap.xml'); 

?>

Answer 1

$tracks = array();
$count = 0;

while ($row = mysql_fetch_array($result)){
    if($count >= 2000){
        $count = 0;
        array_push($currentTrack);
        unset($currentTrack);
        //Reset your domtree object here too...
    }
    $currentTrack = $domtree->createElement("url");
    $currentTrack = $xmlRoot->appendChild($currentTrack);
    $currentTrack->appendChild($domtree->createElement('loc','website'));
    $currentTrack->appendChild($domtree->createElement('changefreq','weekly'));
    $currentTrack->appendChild($domtree->createElement('priority','1.0'));
}

//Now for each array index loop through file creation 
for($i = 0; $i < $tracks.length; $i++){
    /* save the xml sitemap */
    $domtree->formatOutput = true;
    $domtree->preserveWhitespace = false;
    $domtree->save('sitemap' . $i . '.xml'); 
}

您必须在此处添加代码来重置您的domtree，并进行适当的修复以使其正常工作，但您得到了重点。