How to improve php function to get title of remote page?

Question

PHP

Such a script:

function titleLink($url) {
    //проверяем, если кириллический домен, то конвертируем его
    if (preg_match('/[а-яА-Я]/', $url)) {
      require_once('modules/idna_convert.class.php');
      $convert=new idna_convert();
      $url=$convert->encode($url);
    }
    $title="";
    //получаем удаленную страницу
    @$page=file_get_contents($url); 
    if ($page) {
      //находим и выдираем титул
      if (eregi("<title>(.*)</title>", $page, $out)) {
        $title=$out[1];
       //проверяем кодировку, если windows-1251 то конвертируем в utf-8
        if (mb_check_encoding($title, 'Windows-1251') && !mb_check_encoding($title, 'UTF-8')) {
          $title=iconv("CP1251//IGNORE", "UTF-8", $title);
        }
      }
    }
    return $title;
  }

I get the result somewhere in 75% of requests. Moreover, the title sometimes cannot be obtained from the most ordinary average pages, and even, for example, on the second and third pages I received the title, but did not receive it on the fourth, from one site.
How can the script be improved for more successful parsing?

Answer 1

in one place mb_ in another iconv - maybe you should still use mb_?
in one place preg_match() in another eregi, yes you are kidding :D
mb_convert_encoding($title, 'utf-8'); //he will determine the encoding himself.
preg_match('~(.*?)~iu'); //i-case-insensitive search, u-for utf-8 encoding

<?php
function getTitle($url) {
    if(!$url) return ;
  $url = 'http://'.parse_url($url, PHP_URL_HOST);
  //проверяем, если кириллический домен, то конвертируем его
    if (preg_match('/[а-яА-Я]/i', $url)) {
      require_once('modules/idna_convert.class.php');
      $convert=new idna_convert();
      $url=$convert->encode($url);
    }
    $title="";
    //получаем удаленную страницу
    @$page=file_get_contents($url); 
    if ($page) {
      //находим и выдираем титул
      if (preg_match("~<title>(.*?)</title>~iu", $page, $out)) {
        $title=$out[1];
       //конвертируем в utf-8
        mb_convert_encoding($title, 'utf8');
      }
    }
    return $title;
  }
echo getTitle('http://toster.ru/q/траляля');

?>