PHP获取网页标题的3种实现方法代码实例

  一、推荐方法 CURL获取

  <?php

  $c = curl_init();

  $url = 'www.glzy8.com';

  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()函数

  <?php

  $lines_array = file('http://www.glzy8.com/');

  $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.glzy8.com/");

  $pos = strpos($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);

  ?>