add_action('init', function() {
    if (!isset($_GET['delete_posts'])) return;

    global $wpdb;

    $batch = 5000;

    $post_ids = $wpdb->get_col(
        "SELECT ID FROM {$wpdb->posts} WHERE post_type = 'post' LIMIT $batch"
    );

    if (empty($post_ids)) {
        echo "Done.";
        exit;
    }

    $ids_str = implode(',', array_map('intval', $post_ids));

    $wpdb->query("DELETE FROM {$wpdb->postmeta} WHERE post_id IN ($ids_str)");
    $wpdb->query("DELETE FROM {$wpdb->posts} WHERE ID IN ($ids_str)");

    echo count($post_ids) . " posts deleted.";
    exit;
});
<br />
<b>Предупреждение</b>: Невозможно изменить информацию заголовка — заголовки уже отправлены (вывод начался в /home/standa9/public_html/wp-content/mu-plugins/index.php:1) в <b>/home/standa9/public_html/wp-includes/feed-rss2.php</b> онлайн <b>8</b><br />
<?xml version="1.0" encoding="UTF-8"?><rss version="2.0"
	xmlns:content="http://purl.org/rss/1.0/modules/content/"
	xmlns:wfw="http://wellformedweb.org/CommentAPI/"
	xmlns:dc="http://purl.org/dc/elements/1.1/"
	xmlns:atom="http://www.w3.org/2005/Atom"
	xmlns:sy="http://purl.org/rss/1.0/modules/syndication/"
	xmlns:slash="http://purl.org/rss/1.0/modules/slash/"
	>

<channel>
	<title>SOE - Руководство по стратегии Solar 2</title>
	<atom:link href="https://solar2.standardof.net/ru/author/k-tastic/feed/" rel="self" type="application/rss+xml" />
	<link>https://solar2.standardof.net/ru/</link>
	<description>Помогаем вам стать лучше в играх, чтобы произвести впечатление на вашу маму</description>
	<lastBuildDate>Ср, 11 ноя 2020 12:01:08 +0000</lastBuildDate>
	<language>ru-RU</language>
	<sy:updateperiod>
	ежечасно	</sy:updateperiod>
	<sy:updatefrequency>
	1	</sy:updatefrequency>
	<generator>https://wordpress.org/?v=6.5.12</generator>

<image>
	<url>https://solar2.standardof.net/wp-content/uploads/sites/2/2020/10/Solar-2-Favicon-64px-1.png</url>
	<title>SOE - Руководство по стратегии Solar 2</title>
	<link>https://solar2.standardof.net/ru/</link>
	<width>32</width>
	<height>32</height>
</image> 
	<item>
		<title>[КОНЕЦ] Раздача ключей Steam: «X-COM: UFO Defense»</title>
		<link>https://solar2.standardof.net/ru/2020/11/06/steam-%d0%ba%d0%bb%d1%8e%d1%87-%d1%80%d0%b0%d0%b7%d0%b4%d0%b0%d1%87%d0%b0-x-com-ufo-defense/</link>
					<comments>https://solar2.standardof.net/ru/2020/11/06/steam-%d0%ba%d0%bb%d1%8e%d1%87-%d1%80%d0%b0%d0%b7%d0%b4%d0%b0%d1%87%d0%b0-x-com-ufo-defense/#respond</comments>
		
		<dc:creator><![CDATA[SOE]]></dc:creator>
		<pubDate>Пт, 06 ноя 2020 00:16:35 +0000</pubDate>
				<category><![CDATA[Giveaway]]></category>
		<guid ispermalink="false">https://solar2.standardof.net/?p=534</guid>

					<description><![CDATA[]]></description>
										<content:encoded><![CDATA[<div id="kingsumo-embed" data-url="https://kingsumo.com/g/aj7gg8/win-a-free-copy-of-x-com-ufo-defense-on-steam"></div>
<script src="https://kingsumo.com/js/embed.js"></script>]]></content:encoded>
					
					<wfw:commentrss>https://solar2.standardof.net/ru/2020/11/06/steam-%d0%ba%d0%bb%d1%8e%d1%87-%d1%80%d0%b0%d0%b7%d0%b4%d0%b0%d1%87%d0%b0-x-com-ufo-defense/feed/</wfw:commentrss>
			<slash:comments>0</slash:comments>
		
		
			</item>
		<item>
		<title>[КОНЕЦ] Раздача ключей Steam: «Xcom: Terror from the Deep»</title>
		<link>https://solar2.standardof.net/ru/2020/10/23/steam-%d0%ba%d0%bb%d1%8e%d1%87-%d1%80%d0%b0%d0%b7%d0%b4%d0%b0%d1%87%d0%b0-xcom-%d1%82%d0%b5%d1%80%d1%80%d0%be%d1%80-%d0%b8%d0%b7-%d0%b3%d0%bb%d1%83%d0%b1%d0%b8%d0%bd%d1%8b/</link>
					<comments>https://solar2.standardof.net/ru/2020/10/23/steam-%d0%ba%d0%bb%d1%8e%d1%87-%d1%80%d0%b0%d0%b7%d0%b4%d0%b0%d1%87%d0%b0-xcom-%d1%82%d0%b5%d1%80%d1%80%d0%be%d1%80-%d0%b8%d0%b7-%d0%b3%d0%bb%d1%83%d0%b1%d0%b8%d0%bd%d1%8b/#respond</comments>
		
		<dc:creator><![CDATA[SOE]]></dc:creator>
		<pubDate>Пт, 23 окт 2020 20:10:46 +0000</pubDate>
				<category><![CDATA[Giveaway]]></category>
		<guid ispermalink="false">https://solar2.standardof.net/?p=495</guid>

					<description><![CDATA[]]></description>
										<content:encoded><![CDATA[<div id="kingsumo-embed" data-url="https://kingsumo.com/g/kzgkq8/win-a-free-copy-of-x-com-terror-from-the-deep-on-steam"></div>
<script src="https://kingsumo.com/js/embed.js"></script>



<p></p>]]></content:encoded>
					
					<wfw:commentrss>https://solar2.standardof.net/ru/2020/10/23/steam-%d0%ba%d0%bb%d1%8e%d1%87-%d1%80%d0%b0%d0%b7%d0%b4%d0%b0%d1%87%d0%b0-xcom-%d1%82%d0%b5%d1%80%d1%80%d0%be%d1%80-%d0%b8%d0%b7-%d0%b3%d0%bb%d1%83%d0%b1%d0%b8%d0%bd%d1%8b/feed/</wfw:commentrss>
			<slash:comments>0</slash:comments>
		
		
			</item>
	</channel>
</rss>