mirror of
https://github.com/tznb1/TwoNav.git
synced 2025-08-10 08:51:49 +00:00
108 lines
4.8 KiB
PHP
108 lines
4.8 KiB
PHP
<?php
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function get_page_info($output, $friend_link = '', $curl_info=array()) {
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$page_info = array();
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$page_info['site_title'] = ''; //标题
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$page_info['site_description'] = ''; //描述
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$page_info['site_keywords'] = ''; //关键字
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$page_info['friend_link_status'] = 0; //友情链接检测
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$page_info['site_home_size'] = 0; //字符串长度
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if(empty($output)) return $page_info;
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// 获取网页编码，把非utf-8网页编码转成utf-8，防止网页出现乱码
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$meta_content_type = '';
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if(isset($curl_info['content_type']) && strstr($curl_info['content_type'], "charset=") != "") {
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$meta_content_type = explode("charset=", $curl_info['content_type'])[1];
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}
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if($meta_content_type == '') {
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preg_match('/<META\s+http-equiv="Content-Type"\s+content="([\w\W]*?)"/si', $output, $matches); // 中文编码，如 http://www.qq.com
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if (empty($matches[1])) {
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preg_match('/<META\s+content="([\w\W]*?)"\s+http-equiv="Content-Type"/si', $output, $matches);
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}
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if (empty($matches[1])) {
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preg_match('/<META\s+charset="([\w\W]*?)"/si', $output, $matches); // 特殊字符编码，如 http://www.500.com
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}
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if (!empty($matches[1]) && strstr($matches[1], "charset=") != "") {
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$meta_content_type = explode("charset=", $matches[1])[1];
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}
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}
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if(!in_array(strtolower($meta_content_type), array('','utf-8','utf8'))) {
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$output = mb_convert_encoding($output, "utf-8", $meta_content_type); // gbk, gb2312
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}
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// 若网页仍然有乱码，有乱码则gbk转utf-8
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if(json_encode( $output ) == '' || json_encode( $output ) == null) {
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$output = mb_convert_encoding($output, "utf-8", 'gbk');
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}
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$page_info['site_home_size'] = strlen($output);
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// 标题
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preg_match('/<TITLE>([\w\W]*?)<\/TITLE>/si', $output, $matches);
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if (!empty($matches[1])) {
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$page_info['site_title'] = $matches[1];
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}
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// 正则匹配，获取全部的meta元数据
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preg_match_all('/<META(.*?)>/si', $output, $matches);
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$meta_str_array = $matches[0];
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$meta_array = array();
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$meta_array['description'] = '';
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$meta_array['keywords'] = '';
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foreach($meta_str_array as $meta_str) {
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preg_match('/<META\s+name="([\w\W]*?)"\s+content="([\w\W]*?)"/si', $meta_str, $res);
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if(!empty($res)) $meta_array[strtolower($res[1])] = $res[2];
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preg_match('/<META\s+content="([\w\W]*?)"\s+name="([\w\W]*?)"/si', $meta_str, $res);
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if(!empty($res)) $meta_array[strtolower($res[2])] = $res[1];
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preg_match('/<META\s+http-equiv="([\w\W]*?)"\s+content="([\w\W]*?)"/si', $meta_str, $res);
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if(!empty($res)) $meta_array[strtolower($res[1])] = $res[2];
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preg_match('/<META\s+content="([\w\W]*?)"\s+http-equiv="([\w\W]*?)"/si', $meta_str, $res);
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if(!empty($res)) $meta_array[strtolower($res[2])] = $res[1];
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preg_match('/<META\s+scheme="([\w\W]*?)"\s+content="([\w\W]*?)"/si', $meta_str, $res);
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if(!empty($res)) $meta_array[strtolower($res[1])] = $res[2];
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preg_match('/<META\s+content="([\w\W]*?)"\s+scheme="([\w\W]*?)"/si', $meta_str, $res);
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if(!empty($res)) $meta_array[strtolower($res[2])] = $res[1];
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// 20230716 新增匹配语法
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preg_match('/<META\s+content=[\'"](.*?)[\'"]\s+itemprop=[\'"](.*?)[\'"]\s+name=[\'"](.*?)[\'"]>/si', $meta_str, $res);
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if(!empty($res)) $meta_array[strtolower($res[3])] = $res[1];
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preg_match('/<meta\s+itemprop=[\'"](.*?)[\'"]\s+name=[\'"](.*?)[\'"]\s+content=[\'"](.*?)[\'"]>/si', $meta_str, $res);
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if(!empty($res)) $meta_array[strtolower($res[2])] = $res[3];
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}
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//如果正则匹配失败则使用php函数尝试再次匹配
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if(empty($meta_array['keywords']) || empty($meta_array['description'])){
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//将html保存为临时文件
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$key = md5(uniqid().Get_Rand_Str(8));
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$tempFile = DIR ."/data/temp/".md5(uniqid().Get_Rand_Str(8)).".html";
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file_put_contents($tempFile, $output);
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$tags = get_meta_tags($tempFile);
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unlink($tempFile); //删除临时文件
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if(empty($meta_array['keywords']) && !empty($tags['keywords'])){
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$meta_array['keywords'] = $tags['keywords'];
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}
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if(empty($meta_array['description']) && !empty($tags['description'])){
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$meta_array['description'] = $tags['description'];
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}
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}
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$page_info['site_keywords'] = $meta_array['keywords'];
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$page_info['site_description'] = $meta_array['description'];
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//$page_info['meta_array'] = $meta_array; //暂时不需要全部meta
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# 判断是否存在友链
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if(!empty($friend_link) && strstr($output, $friend_link) != "") {
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$page_info['friend_link_status'] = 1;
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}
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return $page_info;
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} |