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-comments.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: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/"
	
	>
<channel>
	<title>
	Комментарии на сайте Solar 2 Strategy Guide	</title>
	<atom:link href="https://solar2.standardof.net/ru/comments/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, 21 окт 2020 17:52:31 +0000</lastBuildDate>
	<sy:updateperiod>
	ежечасно	</sy:updateperiod>
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	1	</sy:updatefrequency>
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	<item>
		<title>Комментарий к записи Planet Stage (Small &amp; Life Planets) (ГП)</title>
		<link>https://solar2.standardof.net/ru/%d1%80%d1%83%d0%ba%d0%be%d0%b2%d0%be%d0%b4%d1%81%d1%82%d0%b2%d0%be-%d0%bf%d0%be-%d1%81%d0%be%d0%bb%d0%bd%d0%b5%d1%87%d0%bd%d0%be%d0%b9-%d1%8d%d0%bd%d0%b5%d1%80%d0%b3%d0%b8%d0%b8-2/%d0%bf%d0%bb%d0%b0%d0%bd%d0%b5%d1%82%d0%b0/#comment-3</link>

		<dc:creator><![CDATA[SOE]]></dc:creator>
		<pubDate>Ср, 21 окт 2020 17:52:31 +0000</pubDate>
		<guid ispermalink="false">https://solar2.standardof.net/?page_id=78#comment-3</guid>

					<description><![CDATA[В ответ на &lt;a href=&quot;https://solar2.standardof.net/ru/%d1%80%d1%83%d0%ba%d0%be%d0%b2%d0%be%d0%b4%d1%81%d1%82%d0%b2%d0%be-%d0%bf%d0%be-%d1%81%d0%be%d0%bb%d0%bd%d0%b5%d1%87%d0%bd%d0%be%d0%b9-%d1%8d%d0%bd%d0%b5%d1%80%d0%b3%d0%b8%d0%b8-2/%d0%bf%d0%bb%d0%b0%d0%bd%d0%b5%d1%82%d0%b0/#comment-2&quot;&gt;Boe&lt;/a&gt;.

No problem, happy to help! Also congrats on being the first comment on the new site!  :D]]></description>
			<content:encoded><![CDATA[<p>В ответ на <a href="https://solar2.standardof.net/ru/%d1%80%d1%83%d0%ba%d0%be%d0%b2%d0%be%d0%b4%d1%81%d1%82%d0%b2%d0%be-%d0%bf%d0%be-%d1%81%d0%be%d0%bb%d0%bd%d0%b5%d1%87%d0%bd%d0%be%d0%b9-%d1%8d%d0%bd%d0%b5%d1%80%d0%b3%d0%b8%d0%b8-2/%d0%bf%d0%bb%d0%b0%d0%bd%d0%b5%d1%82%d0%b0/#comment-2">Boe</a>.</p>
<p>No problem, happy to help! Also congrats on being the first comment on the new site!  😀</p>
]]></content:encoded>
		
			</item>
		<item>
		<title>Комментарий к записи Planet Stage (Small &amp; Life Planets) (Boe)</title>
		<link>https://solar2.standardof.net/ru/%d1%80%d1%83%d0%ba%d0%be%d0%b2%d0%be%d0%b4%d1%81%d1%82%d0%b2%d0%be-%d0%bf%d0%be-%d1%81%d0%be%d0%bb%d0%bd%d0%b5%d1%87%d0%bd%d0%be%d0%b9-%d1%8d%d0%bd%d0%b5%d1%80%d0%b3%d0%b8%d0%b8-2/%d0%bf%d0%bb%d0%b0%d0%bd%d0%b5%d1%82%d0%b0/#comment-2</link>

		<dc:creator><![CDATA[Boe]]></dc:creator>
		<pubDate>Ср, 21 окт 2020 16:19:34 +0000</pubDate>
		<guid ispermalink="false">https://solar2.standardof.net/?page_id=78#comment-2</guid>

					<description><![CDATA[Thanks for this! I’ve always wondered if there was a way to get more than 4 turrets but the Solar 2 wikia is very lacking in information.]]></description>
			<content:encoded><![CDATA[<p>Thanks for this! I’ve always wondered if there was a way to get more than 4 turrets but the Solar 2 wikia is very lacking in information.</p>
]]></content:encoded>
		
			</item>
	</channel>
</rss>