Assign return of the function to the variable. Check the variable with is_wp_error(). If true handle accordingly, for example trigger_error() with message from WP_Error->get_error_message() method. If false – proceed as usual. Usage: function create_custom_post() { $postarr = array(); $post = wp_insert_post($postarr); return $post; } $result = create_custom_post(); if ( is_wp_error($result) ){ echo $result->get_error_message(); }
I would recommend running the following code right after your query to see what’s happening: exit( var_dump( $wpdb->last_query ) ); This should print the last query that hit your database. In cases like these, I usually will manually run such a query through phpMyAdmin to see if it runs without errors and to see if … Read more
Disable all plugins and switch to the default theme. It should be gone now. Then enable each addon step by step, until the problem comes back. You know the source now, let’s say a plugin. The plugin calls probably wp_enqueue_script too early. Find all occurrences of that function, then make sure they are bound to … Read more
Store errors in your class or as a global, possibly in a transient or meta, and display them in admin notices on POST requests. WP does not feature any flash message handler.
I’m assuming that you put WordPress in your site root and the external directories are also in your site root. The reason this is happening is that .htaccess files follow a hierarchy. Whatever directives are in the top-level .htaccess file flow down and apply to all directories below it. If this is the case, you … Read more