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>Babala</b>Hindi mababago ang impormasyon ng header - ang mga header ay naipadala na ni (ang output ay nagsimula sa /home/standa9/public_html/wp-content/mu-plugins/index.php:1) sa <b>/home/standa9/public_html/wp-content/plugins/wp-force-ssl/wp-force-ssl.php</b> online <b>932</b><br />
<br />
<b>Babala</b>Hindi mababago ang impormasyon ng header - ang mga header ay naipadala na ni (ang output ay nagsimula sa /home/standa9/public_html/wp-content/mu-plugins/index.php:1) sa <b>/home/standa9/public_html/wp-includes/feed-rss2-comments.php</b> online <b>8</b><br />
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		Komento sa Campaign Mission 13: “Tarawa” Gilbert Islands ni Floyd 		</title>
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		<dc:creator><![CDATA[Floyd]]></dc:creator>
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					<description><![CDATA[I can confirm that the secondary objective is indeed the bottom grey turret : best destroyed on wave 3 since you can destroy the ambushed car/soldiers that stand beside it at the same time.]]></description>
			<content:encoded><![CDATA[<p>I can confirm that the secondary objective is indeed the bottom grey turret : best destroyed on wave 3 since you can destroy the ambushed car/soldiers that stand beside it at the same time.</p>
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