PHP獲取網頁標題的3種實現方法代碼實例

 這篇文章主要介紹了PHP獲取網頁標題的3種實現方法,分別使用CURL、file()函數、file_get_contents實現,需要的朋友可以參考下

一、推薦方法 CURL獲取   <?php $c = curl_init(); $url = 'www.jb51.net'; curl_setopt($c, CURLOPT_URL, $url); curl_setopt($c, CURLOPT_RETURNTRANSFER, 1); $data = curl_exec($c); curl_close($c); $pos = strpos($data,'utf-8'); if($pos===false){$data = iconv("gbk","utf-8",$data);} preg_match("/<title>(.*)</title>/i",$data, $title); echo $title[1]; ?>   二、使用file()函數   <?php $lines_array = file('http://www.jb51.net/'); $lines_string = implode('', $lines_array);  $pos = strpos($lines_string,'utf-8'); if($pos===false){$lines_string = iconv("gbk","utf-8",$lines_string);} eregi("<title>(.*)</title>", $lines_string, $title); echo $title[1]; ?>   三、使用file_get_contents   <?php $content=file_get_contents("http://www.jb51.net/"); $pos = strpos($content,'utf-8'); if($pos===false){$content = iconv("gbk","utf-8",$content);} $postb=strpos($content,'<title>')+7; $poste=strpos($content,'</title>'); $length=$poste-$postb; echo substr($content,$postb,$length); ?>