分享一个生成sitemap.xml的类
很多站长在做seo优化的时候都会向各大搜索引擎网站提交站点地图sitemap.xml,同样需要提交。于是专门写了一个生成sitemap.xml的类，支持生成在制定目录下，默认生成在网站根目录下。
分享下代码sitemap.class.php：
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<?php |
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/** |
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+------------------------------------------------------------------------------ |
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* SITEMAP生成类 |
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+------------------------------------------------------------------------------ |
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* author：leo.li |
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* QQ：281978297 |
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* email：281978297@qq.com |
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+------------------------------------------------------------------------------ |
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$stitmap = new sitemap("sitemap.xml"); |
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$stitmap->AddItem("https://licao.so","2012-03-27T09:04:04-08:00","always","0.8"); |
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$stitmap->Display(TRUE); |
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* |
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+------------------------------------------------------------------------------ |
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*/ |
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class sitemap { |
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protected $items = array(); |
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protected $dir; //生成sitemap目录路径 |
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protected $xmlName; //生成sitemap文件名 |
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public function __construct($xmlName, $dir) { |
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$this->dir = $dir; |
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$this->xmlName = $xmlName; |
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} |
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/** |
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+---------------------------------------------------------- |
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* 添加siteUrl项 |
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+---------------------------------------------------------- |
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* @param string $loc 链接 |
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* @param string $lastmod 更新时间 |
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* @param string $changefreq 更新频率 "always", "hourly", "daily", "weekly", "monthly", "yearly" |
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* @param string $priority 级别 |
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+---------------------------------------------------------- |
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*/ |
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function AddItem($loc, $changefreq, $lastmod, $priority) { |
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$lastmod = empty($lastmod) ? date("Y-m-d") . "T" . date("H:i:s-08:00") : $lastmod; |
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$changefreq = empty($changefreq) ? "always" : $changefreq; |
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$priority = empty($priority) ? "0.8" : $priority; |
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$this->items[] = array('loc' => $loc, 'lastmod' => $lastmod, 'changefreq' => $changefreq, 'priority' => $priority); |
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} |
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/** |
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+---------------------------------------------------------- |
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* 输出SITEMAP的XML为字符串 |
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+---------------------------------------------------------- |
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* @return string |
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+---------------------------------------------------------- |
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*/ |
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public function Fetch() { |
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$map = "<?xml version=\"1.0\" encoding=\"UTF-8\" ?>\r\n"; |
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$map.="<urlset xmlns=\"https://www.sitemaps.org/schemas/sitemap/0.9\">\r\n"; |
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foreach ($this->items as $v) { |
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$map.="\t<url>\r\n"; |
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$map.="\t\t<loc>" . $v[loc] . "</loc>\r\n"; |
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$map.="\t\t<lastmod>" . $v[lastmod] . "</lastmod>\r\n"; |
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$map.="\t\t<changefreq>" . $v[changefreq] . "</changefreq>\r\n"; |
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$map.="\t\t<priority>" . $v[priority] . "</priority>\r\n"; |
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$map.="\t</url>\r\n"; |
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} |
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$map.='</urlset>'; |
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return $map; |
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} |
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/** |
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+---------------------------------------------------------- |
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* 输出SITEMAP的XML到浏览器 |
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+---------------------------------------------------------- |
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* @param boole $display 是否显示sitemap内容 |
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+---------------------------------------------------------- |
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*/ |
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public function Display($display=FALSE) { |
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$xml = $this->Fetch(); |
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if ($display == TRUE) { |
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header("Content-Type: text/xml; charset=utf-8"); |
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echo $xml; |
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} |
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$this->makeXml($this->dir, $this->xmlName, $xml, $display); |
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} |
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/** |
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+---------------------------------------------------------- |
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* 检测目录，不存在创建目录 |
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+---------------------------------------------------------- |
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* @param str $dir 目录 |
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+---------------------------------------------------------- |
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*/ |
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function make_dir($dir) { |
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return is_dir($dir) or (make_dir(dirname($dir)) and @mkdir($dir, 0777)); |
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} |
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/** |
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+---------------------------------------------------------- |
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* 生成sitemap.xml文件 |
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+---------------------------------------------------------- |
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* @param str $dir 目录 |
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* @param str $xml sitemap文件名 |
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* @param str $xml sitemap内容 |
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* @param str $display 是否在页面中显示sitemap内容 |
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+---------------------------------------------------------- |
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*/ |
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function makeXml($dir, $xmlName, $xml, $display) { |
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$dir = $dir == '' ? $_SERVER[DOCUMENT_ROOT] : $this->make_dir($dir); |
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$xmlName = $xmlName == '' ? $dir . "sitemap.xml" : $dir . $xmlName; |
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$handle = fopen($xmlName, "w"); |
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if (!fwrite($handle, $xml)) { |
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if ($display == FALSE) { |
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die("生成文件" . $xmlName . "失败！"); |
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} |
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} else { |
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if ($display == FALSE) { |
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die("生成文件" . $xmlName . "成功！"); |
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} |
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} |
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fclose($handle); |
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} |
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} |
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?> |
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用法：载入sitemap.class.php后：<pre class="brush:php; toolbar: true; auto-links: true;"> $stitmap = new sitemap(); |
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$stitmap->AddItem("https://licao.so","2012-03-27T09:04:04-08:00","always","0.8"); |
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$stitmap->Display(TRUE);</pre><br> |
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$stitmap = new sitemap("sitemap.xml"); |
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$stitmap->AddItem("https://licao.so","2012-03-27T09:04:04-08:00","always","0.8"); |
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$stitmap->Display(TRUE); |
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$stitmap = new sitemap("sitemap.xml","./sitemap/"); |
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$stitmap->AddItem("https://licao.so","2012-03-27T09:04:04-08:00","always","0.8"); |
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$stitmap->Display(TRUE); |
