globals

Access post ID in “content_save_pre”

After asking around and looking for alternatives, I came up with a working solution that works in the web frontend and in the Android/iOS XML-RPC based apps. This is the filter. add_filter(‘wp_insert_post_data’, array($this, ‘save_content2’), 9, 2); I am pretty sure it is called before the content_save_pre filter. It allows direct access to the post fields … Read more

how to load posts to a custom post template after using template_redirect or template_include

here is the full code to force change theme by a reserved wordpress parameter add_action( ‘pre_get_posts’, ‘my_pre_get_posts’ ); function my_pre_get_posts($wp_query) { global $wpdb; // Confirm request is main query if(!$wp_query->is_main_query()) { return; } // Get post name from query $post_name = $wp_query->get(‘pagename’); // Get post type from database $post_type = $wpdb->get_var( $wpdb->prepare( ‘SELECT post_type FROM … Read more

‘global’ not working in wordpress?

Don’t use globals, but if you must use them you should explicitly declare them as such. WordPress includes theme files from functions therefor a $test = 1; will be evaluated in the context of the function and the variable $test will be implicitly declared in the context of the function but not as a global.

Array is not working in Filter?

You cannot define something outside a function and then simply try to use it inside the function without calling it into the function. This is basic PHP and how functions work in general. You need to pass that specific something to the function or define that something inside the function or use a method to … Read more

Retrieve post in AJAX Callback

It’s possible to capture the $post_id using a combination of wp_get_referer() and url_to_postid() then reset the $post using setup_postdata. That should work easy enough for the front-end. But on the admin side we’ll need to pull the query with parse_url and grab the ID using parse_str. For good measure we should double check if we’re … Read more

Is it advisable to use $post->comment_count instead of get_comments_number( $post_id )

This is that classic question, do you have 6 eggs or half a dozen, and frankly, it doesn’t actually matter. It is however better to use get_comments_number() because the post object is retrieved from the $GLOBALS[‘post’] global which is set by the_post() inside the loop the post object is validated through WP_Post (through get_post()) the … Read more

How to get submenu of admin menu?

You can use the global variable $submenu. Example to list the child menu of parent post menu:- function admin_init_callback() { global $submenu; $sumenu_list = $submenu[‘edit.php’]; var_dump($sumenu_list); //array of submenu } add_action(‘admin_init’, ‘admin_init_callback’, 999); Profi660 EDIT: Not needed to be used with admin_init hook. I used this in my plugin page and worked very well.

WP user agent returns random variables

You can examine wp-includes/vars.php for specific logic which implements sniffing for these globals in WordPress. In a nutshell the checks are very basic, especially considering user agent sniffing is inherently a mess. If you need a more reliable implementation you would have to get one elsewhere (or code it yourself). That or use different technique … Read more

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