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Understanding Source Code

The best way to understand what a hook does is to look at where it occurs in the source code.

Remember, this hook may occur in more than one file. Moreover, the hook's context may change from version to version.

Source View

Line Code
1340      $post = $wpdb->get_row( $wpdb->prepare("SELECT * FROM $wpdb->posts WHERE ID = %d", $post_id) );
1341      $to_ping = get_to_ping($post_id);
1342      $pinged  = get_pung($post_id);
1343      if ( empty($to_ping) ) {
1344           $wpdb->update($wpdb->posts, array('to_ping' => ''), array('ID' => $post_id) );
1345           return;
1346      }
1347
1348      if ( empty($post->post_excerpt) )
1349           $excerpt = apply_filters('the_content', $post->post_content);
1350      else
1351           $excerpt = apply_filters('the_excerpt', $post->post_excerpt);
1352      $excerpt = str_replace(']]>', ']]>', $excerpt);
1353      $excerpt = wp_html_excerpt($excerpt, 252) . '...';
1354
1355      $post_title = apply_filters('the_title', $post->post_title);
1356      $post_title = strip_tags($post_title);
1357
1358      if ( $to_ping ) {