While you might not want / be able to use native query, it is still the easiest and most reliable way to generate SQL like that. $wpdb->last_query will remember last query performed and defining SAVEQUERIES constants will make $wpdb->queries contain all of the queries performed in current load (not advisable in production for performance). So … Read more
You don’t need PDO to write safe DB queries. PHP developers were able to do so before PDO was created 😉 There is nothing unsafe in using WPDB class, as long as you do it correctly (just use prepare and correct ways of escaping). There is one major flaw in your question: using PDO, of … Read more
I tried to google “wordpress sql to get post url” and I was pretty astonished I couldn’t find any resource sharing the SQL code to join the wp_post table with the table containing the permalink. That is because there is no table containing the permalink. Your “challenge” and your “astonishment” are because you’ve imagined the … Read more
First, his filter is explained in the manual and is found in the code. If you have questions about hooks and functions, the manual and code is a good place to start looking for answers. The post_clauses hook is passed the associative array to filter, so just manipulate the where and join indices as per … Read more
To show extra fields in profile, use this hook: function myplugin_show_profile_extra_fields( $user ) { // echo your extra fields here } add_action( ‘show_user_profile’, ‘myplugin_show_profile_extra_fields’ ); add_action( ‘edit_user_profile’, ‘myplugin_show_profile_extra_fields’ ); And to save extra fields use following hook: function myplugin_save_profile_extra_fields( $user_id ) { if ( !current_user_can( ‘edit_user’, $user_id ) ) { return false; } update_usermeta( $user_id, … Read more
The way you are thinking wordpress is, is not like that. You can’t find the query and alter it like you do in plain PHP. There are filters and actions and a whole architecture to play with pages and posts. I suggest you to read wordpress documentation and Codex. If you are a programmer then … Read more
Use This Script <?php $servername = “localhost”; $username = YOUR_USER; $password = YOUR_PASSWORD; $dbname = YOUR_DB_NAME; // Create connection $conn = new mysqli($servername, $username, $password, $dbname); // Check connection if ($conn->connect_error) { die(“Connection failed: ” . $conn->connect_error); } $a1 = ($_GET[‘id’]); $sql = “SELECT post_content FROM `wp_posts` where ID=’$a1′”; $result = $conn->query($sql); if ($result->num_rows > … Read more
There are a few ways you could do it- NOT IN, NOT EXISTS, IS NULL. Which method is best depends on your actual query. SELECT * FROM $wpdb->posts LEFT JOIN $wpdb->postmeta ON $wpdb->posts.ID = $wpdb->postmeta.post_id AND $wpdb->postmeta.meta_key = ‘somekey’ WHERE $wpdb->postmeta.post_id IS NULL
Your problem is the constants OBJECT_K. In the documentation you can read that this constant ensures that duplicate keys are discarded. From the wordpress codex entry: Any of ARRAY_A | ARRAY_N | OBJECT | OBJECT_K constants. With one of the first three, return an array of rows indexed from 0 by SQL result row number. … Read more
You can simply preprocess the content by adding a filter to the_content like that: function wpse_337486( $content ) { if ( is_single() ) { // Get the current post. global $post; // Get all post tags. Get only their names. $tags = wp_get_post_tags($post->ID, [‘fields’ => ‘names’]); // Append post tags to content. $content = $content … Read more