Question

如何从外部网站和标题页获取元

如何从外部网站获取元

<input type="text"value="http://"id="externalurl" />

Answer 1

我个人会使用PHP而不是Javascript来解决这个问题。如果javascript确实是必要的，那么你可以在AJAX页面上进行AJAX。我将从使用这个PHP库“http://sourceforge.net/projects/simplehtmldom/”开始然后按照以下方式做一些事情：

// Create DOM from URL or file
$url = 'http://www.example.com/';
$html = file_get_html($url);

// Find all meta tags
foreach($html->find('meta') as $element){
       $temp['name'] = $element->name;
       $temp['content'] = $element->content;
       $meta[] = $temp;
}
//Run checks on the array of meta tags or whatever you are trying to acheive

我没有检查过这个，因为我很狡猾，但我看到了这个问题并立刻想到了这个图书馆！希望它有所帮助

测试后编辑：经过一段时间的游戏，这段代码：

<?php 
include('simple_html_dom.php');
// Create DOM from URL or file
$url = 'http://www.amazon.com/';
$html = file_get_html($url);

// Find all meta tags
foreach($html->find('meta') as $element){
        $temp['name'] = $element->name;
        $temp['content'] = $element->content;
        $temp['charset'] = $element->charset;
       $meta[] = $temp;
       $temp = "";
}
print_r($meta);
?>

输出：

Array
(
    [0] => Array
        (
            [name] => 
            [content] => on
            [charset] => 
        )

    [1] => Array
        (
            [name] => 
            [content] => text/html; charset=iso-8859-1
            [charset] => 
        )

    [2] => Array
        (
            [name] => description
            [content] => Online shopping from the earth&#39;s biggest selection of books, magazines, music, DVDs, videos, electronics, computers, software, apparel &amp; accessories, shoes, jewelry, tools &amp; hardware, housewares, furniture, sporting goods, beauty &amp; personal care, broadband &amp; dsl, gourmet food &amp; just about anything else.
            [charset] => 
        )

    [3] => Array
        (
            [name] => keywords
            [content] => Amazon, Amazon.com, Books, Online Shopping, Book Store, Magazine, Subscription, Music, CDs, DVDs, Videos, Electronics, Video Games, Computers, Cell Phones, Toys, Games, Apparel, Accessories, Shoes, Jewelry, Watches, Office Products, Sports &amp; Outdoors, Sporting Goods, Baby Products, Health, Personal Care, Beauty, Home, Garden, Bed &amp; Bath, Furniture, Tools, Hardware, Vacuums, Outdoor Living, Automotive Parts, Pet Supplies, Broadband, DSL
            [charset] => 
        )

    [4] => Array
        (
            [name] => google-site-verification
            [content] => 9vpzZueNucS8hPqoGpZ5r10Nr2_sLMRG3AnDtNlucc4
            [charset] => 
        )

)

这似乎几乎所有东西！

从外部网站获取网址

1 个答案: