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>Warning</b>:  Cannot modify header information - headers already sent by (output started at /home/standa9/public_html/wp-content/mu-plugins/index.php:1) in <b>/home/standa9/public_html/wp-includes/feed-rss2-comments.php</b> on line <b>8</b><br />
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	xmlns:sy="http://purl.org/rss/1.0/modules/syndication/"
	
	>
<channel>
	<title>
	Comments on: Planet Stage (Small &#038; Life Planets)	</title>
	<atom:link href="https://solar2.standardof.net/solar-2-guide/planet-stage/feed/" rel="self" type="application/rss+xml" />
	<link>https://solar2.standardof.net</link>
	<description>Helping You Get Better at Games to Impress Your Mother</description>
	<lastBuildDate>Wed, 21 Oct 2020 17:52:31 +0000</lastBuildDate>
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	<item>
		<title>
		By: SOE		</title>
		<link>https://solar2.standardof.net/solar-2-guide/planet-stage/#comment-3</link>

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

					<description><![CDATA[In reply to &lt;a href=&quot;https://solar2.standardof.net/solar-2-guide/planet-stage/#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>In reply to <a href="https://solar2.standardof.net/solar-2-guide/planet-stage/#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>
		By: Boe		</title>
		<link>https://solar2.standardof.net/solar-2-guide/planet-stage/#comment-2</link>

		<dc:creator><![CDATA[Boe]]></dc:creator>
		<pubDate>Wed, 21 Oct 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>
		
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