single.php not pulling in any data from database

have_posts() needs a WordPress database query before it will show anything, check it here like this: $the_query = new WP_Query( ‘post_type=post’ ); if ( $the_query->have_posts() ) { echo ‘<ul>’; while ( $the_query->have_posts() ) { $the_query->the_post(); echo ‘<li>’ . get_the_title() . ‘</li>’; } echo ‘</ul>’; } else { // no posts found } it will display … Read more

Efficiently loop over huge number of posts

Call a external script: Your function look like this: <?php function modify_posts() { $number_posts = 10; $offset = 0; $success=”success”; while ( ‘success’ === $success ) { $url = add_query_arg( array( ‘num’ => $number_posts, ‘off’ => $offset, ‘abs’ => urlencode( ABSPATH ) ), plugins_url( ‘remote_get.php’, __FILE__ ) ); $response = wp_remote_get( $url ); if ( … Read more

Complicated MySQL Query

Why not just use WP_Query for this instead of inventing the wheel all over again? I’m pretty sure you can solve this with a meta query within your WP_Query. See the codex.

Replace Unwanted Space in Post Content URL

I think you should run this query. To replace space with dash. update wp_posts set wp_posts.post_name = REPLACE( wp_posts.post_name, ‘ ‘, ‘-‘ ); Don’t forget to change table_prefix in this. And also, keep a backup on current database before trying.

MySQL: get post_tag items that are tags (not SEO keywords)

Fetching all tags of post: SELECT p.id, p.post_name, c.name, GROUP_CONCAT(t.`name`) as tag FROM wp_posts p JOIN wp_term_relationships cr on (p.`id`=cr.`object_id`) JOIN wp_term_taxonomy ct on (ct.`term_taxonomy_id`=cr.`term_taxonomy_id` and ct.`taxonomy`=’category’) JOIN wp_terms c on (ct.`term_id`=c.`term_id`) JOIN wp_term_relationships tr on (p.`id`=tr.`object_id`) JOIN wp_term_taxonomy tt on (tt.`term_taxonomy_id`=tr.`term_taxonomy_id` and tt.`taxonomy`=’post_tag’) JOIN wp_terms t on (tt.`term_id`=t.`term_id`) GROUP BY p.id order by p.id … Read more