README

#HtmlMeta

HtmlMeta 提供了 PHP 中 HTML meta 标签读取和写入的抽象。您可以直接使用此库生成或解析 HTML 内容中的 meta 标签，或使用 HtmlMeta 的 OpenGraph 或 Twitter Cards 实现，以丰富您的搜索引擎优化和用户体验。

##安装

您可以通过 Composer 安装 HtmlMeta，命令为 mauris/htmlmeta。请参阅 https://packagist.org.cn/packages/mauris/htmlmeta。

##写入 <meta>

<?php

use HtmlMeta\Writer;

$writer = new Writer();

$writer->add(new Meta(array('charset' => 'utf8')));
$writer->add(new Meta(array('name' => 'description', 'content' => 'some description')));

echo $writer->render();

输出到

<meta charset="utf8" />
<meta name="description" content="some description" />

##读取 <meta>

<?php

use HtmlMeta\Reader;

$reader = new Reader();
$data = $reader->parse(file_get_contents('http://www.nytimes.com/2013/07/09/world/middleeast/egypt.html'));
print_r($data);

输出到

Array
(
    [0] => HtmlMeta\Meta Object
        (
            [attributes:protected] => Array
                (
                    [http-equiv] => Content-Type
                    [content] => text/html; charset=utf-8
                )

        )

    [1] => HtmlMeta\Meta Object
        (
            [attributes:protected] => Array
                (
                    [itemprop] => inLanguage
                    [content] => en-US
                )

        )

    [2] => HtmlMeta\Meta Object
        (
            [attributes:protected] => Array
                (
                    [itemprop] => description
                    [name] => description
                    [content] => In a sharp escalation of tensions Monday, Egyptian soldiers opened fire on hundreds of supporters of Mohamed Morsi, the ousted president, witnesses said. The military said armed assailants fired first.
                )

        )
...
)