PHP网站如何创建 Rss 订阅源？

moell/rss

推荐扩展：moell/rss

moell/rss

moell/rss是遵循RSS２.0标准的包

RSS规范

http://www.rssboard.org/rss-specification

RSS 教程参考文档

要求

PHP >= 5.4.0

安装

composer require "moell/rss:1.*"

提供接口

//设置字符集
public function setEncode($encode); //默认UTF-8

public function channel(array $channel);

public function item(array $item);

public function items(array $items);

//构造xml
public function build();

//快速构造
public function fastBuild(array $channel, array $item);

public function __toString();

用法

$rss = new \\Moell\\Rss\\Rss();

$channel = [
    'title' => 'title',
    'link'  => 'http://moell.cn',
    'description' => 'description',
    'category' => [
        'value' => 'html',
        'attr' => [
            'domain' => 'http://www.moell.cn'
        ]
    ]
];

$rss->channel($channel);

$items = [];
for($i = 0; $i < 2; $i++) {
    $item = [
        'title' => "title".$i,
        'description' => 'description',
        'pubDate' => htmlspecialchars(date(DATE_RSS, strtotime($created_at))), # 注意时间格式
        'source' => [
            'value' => 'moell.cn',
            'attr' => [
                'url' => 'http://www.moell.cn'
            ]
        ]
    ];
    $items[] = $item;
    $rss->item($item);
}

echo $rss;  //获取xml

//其他获取方式
$rss->build()->asXML();

$rss->fastBuild($channel, $items)->asXML();

$rss->channel($channel)->items($items)->build()->asXML();

注意

若报错 SimpleXMLElement::addChild(): unterminated entity reference

将 item 中每一项用 htmlspecialchars() 方法转义

生成结果

<?xml version="1.0" encoding="UTF-8"?>
<rss
    xmlns:content="http://purl.org/rss/1.0/modules/content/"
    xmlns:atom="http://www.w3.org/2005/Atom" version="2.0">
    <channel>
        <title>title</title>
        <link>http://moell.cn</link>
        <description>description</description>
        <category domain="http://www.moell.cn">html</category>
        <item>
            <title>title0</title>
            <description>description</description>
            <pubDate>Mon, 03 Jan 2022 22:57:08 +0800</pubDate>
            <source url="http://www.moell.cn">moell.cn</source>
        </item>
        <item>
            <title>title1</title>
            <description>description</description>
            <pubDate>Mon, 03 Jan 2022 22:57:08 +0800</pubDate>
            <source url="http://www.moell.cn">moell.cn</source>
        </item>
    </channel>
</rss>

将 RSS 自动发现添加到您的站点

生成rss订阅文件后，将文件地址放到页面header中。

<link rel="alternate" type="application/rss+xml" title="木偶笔记 &raquo; RSS 2.0" href="//wangmaolin.net/storage/feed.xml" />

如果您的网站有多个 RSS 订阅源，只需添加多个如上标签即可。

引用链接

[1] moell/rss: https://github.com/moell-peng/rss
[2] http://www.rssboard.org/rss-specification: http://www.rssboard.org/rss-specification
[3] RSS 教程参考文档: https://www.runoob.com/rss/rss-tutorial.html

SEO

RSS