As Tom J Nowell pointed out in the comments, this is a very specific situation, which makes the question rather difficult to answer. If the source system has suitable code for pushing data to other systems, then you could consider registering a custom REST endpoint at the WordPress end. The endpoint would receive, validate and … Read more
Saving Tutor LMS plugin courses as WordPress Blog Posts in Database [closed]
As discussed in comments, the problem was a missing prce2 package which meant preg_match(), used by $wpdb->db_version() to parse the MySQL version number out of SELECT VERSION(), didn’t work. Solved by sudo yum install pcre2
How to extract and reveal code from SQL database in WordPress
If you provided full code, issue is probably in this line: $wpdb->prepare(“INSERT INTO ‘myprefix_posts_views’ (postid, ip, device) VALUES (%d, %s, %s) ON DUPLICATE KEY UPDATE create_at=VALUES(create_at)”, $postID, $_SERVER[‘REMOTE_ADDR’], $_SERVER[‘HTTP_USER_AGENT’]); Because into column postid you are trying to put variable $postID, when you didn’t declare it anywhere. This column is NOT NULL, so probably you have … Read more
WordPress Post Query Using Custom native MySQL like St_Distance_Sphere
WordPress User Login not accepted although listed in DB
It is recommended to use the $wpdb->get_var() method when retrieving a count of rows. This method will return the count directly, rather than inside of an array or object like wpdb::get_results().
There’s only one naming convention to remember, the WP table prefix. If you don’t want to use it you can do whatever you want. WordPress only cares about its own tables, you can create any other tables you want. Keep in mind though that the WordPress table prefix isn’t always wp_, and it changes for … Read more
Using the wpdb::prepare() method is recommended for creating queries properly and avoiding SQL injection. For a basic solution, use the addslashes() function, but this is not sufficient for preventing SQL injection. See Mysql + php with special characters like ‘(Apostrophe) and ” (Quotation mark).