开发者必备，超实用的PHP代码片段！

来源：互联网发布：郑州seo薪资编辑：程序博客网时间：2024/06/08 15:51

从网页中提取关键字

$meta = get_meta_tags('http://www.emoticode.net/');$keywords = $meta['keywords'];// Split keywords$keywords = explode(',', $keywords );// Trim them$keywords = array_map( 'trim', $keywords );// Remove empty values$keywords = array_filter( $keywords ); print_r( $keywords );

查找页面上的所有链接

$html = file_get_contents('http://www.example.com'); $dom = new DOMDocument();@$dom->loadHTML($html); // grab all the on the page$xpath = new DOMXPath($dom);$hrefs = $xpath->evaluate("/html/body//a"); for ($i = 0; $i < $hrefs->length; $i++) {       $href = $hrefs->item($i);       $url = $href->getAttribute('href');       echo $url.'<br />';}

显示Facebook 粉丝数量

<?php    $page_id = "YOUR PAGE-ID";    $xml = @simplexml_load_file("http://api.facebook.com/restserver.php?method=facebook.fql.query&query=SELECT%20fan_count%20FROM%20page%20WHERE%20page_id=".$page_id."") or die ("a lot");    $fans = $xml->page->fan_count;    echo $fans;?>