title: Meta_key and meta_value - Wordpress
body: <p>As the question asks, I'm trying to understand one thing, as this is a popular of the fields within the table, but I can't understand their usefulness.</p>
  
  <pre><code>global $wpdb;
  $wpdb-&gt;insert(
      $wpdb-&gt;postmeta,
      array(
          'post_id' =&gt; '1',
          'meta_key' =&gt; 'address',
          'meta_value' =&gt; '1428 Elm St.'
      ),
      array(
          '%d',
          '%s',
          '%s'
      )
  );
  </code></pre>
  
  <p>One thing is the post-table table?</p>
  
  <p>What is the use of this table as in the previous case, for the seo?</p>
  
  <p>in my searches on google, I saw that setting the correct tags, involves a better indexing by google, and for this there is a truly spectacular tool, which allows you to have access by entering the word of the topic we want to write like post and get all the queries, that people type more on google: (<code>https://answerthepublic.com/</code>)</p>
  
  <p>but setting tags and populating the postmeta table are not the same thing?</p>
  
  <p>What is the utility of populating with a code like the postmeta table before?</p>