Php获取网络文件

php获取金书网的书名：

 

<?php 
    $url="http://www.golden-book.com/booksinfo/12/264.html";
    $lines_array = file($url);
    $lines_string = implode('',$lines_array);
    iconv("gb2312", "utf-8",$lines_string);
//    echo "dsafasdfasf".$lines_string;
    eregi("<span class=\"style15\">[^>]*</span>",$lines_string,$head);
    echo "asdfsfasdfa".$head[0];
?>