functions - Read For Learn

Does hooking into the same action multiple times drain memory?

I guess you mean add_action( ‘pre_get_posts’, ‘private_groups’ ); add_action( ‘pre_get_posts’, ‘search_results’ ); add_action( ‘pre_get_posts’, ‘name_profiles’ ); versus add_action( ‘pre_get_posts’, ‘combined_into_single_callback’ ); You can just check the difference using e.g. memory_get_usage() and timer_stop(). Many good plugins out there to help with that. I would say go with the first one, as they seems to be unrelated … Read more

Possible to search by author name with default WordPress search function?

Maybe you can try adding your condition directly in the query string, using something like this function wpse_29570_where_filter($where){ global $wpdb; if( is_search() ) { $search= get_query_var(‘s’); $query=$wpdb->prepare(“SELECT user_id FROM $wpdb->usermeta WHERE ( meta_key=’first_name’ AND meta_value LIKE ‘%%%s%%’ ) or ( meta_key=’last_name’ AND meta_value LIKE ‘%%%s%%’ )”, $search ,$search); $authorID= $wpdb->get_var( $query ); if($authorID){ $where = … Read more

Dynamically add id to heading tags

I had this very same dilemma, and I found this plugin: Add IDs to Header Tags, and it works fine for posts. (I’m not affiliated to the plugin in any way). To make it work for pages too, I had to make a change in the code, which is explained on this support page: Not … Read more

Define custom Page Template without its own .php file

WordPress read the templates from file headers, and then set them in the cache. using wp_cache_set() nad a key that is derived from the md5 has of stylesheet folder. So, just overriding that cache we can show the templates we want. To override that cache we need to call wp_cache_set() again using same key. First … Read more

What’s the difference between admin_url() and get_admin_url() functions?

The admin_url() function retrieves the URL to the admin area for your current site. You needn’t give the blog id for your current site. You can use this function if you aren’t running WordPress multisite. And use the get_admin_url() function to get a specific site URL in the multisite admin.

Remove “Insert from URL” link in Media upload – WP 3.5

This should work: add_filter( ‘media_view_strings’, ‘cor_media_view_strings’ ); /** * Removes the media ‘From URL’ string. * * @see wp-includes|media.php */ function cor_media_view_strings( $strings ) { unset( $strings[‘insertFromUrlTitle’] ); return $strings; }

Removing Metabox for “Slug” without removing functionality

The box which allows slug edition under the post title is actually tied to the slug metabox. It needs it to work. So, removing the metabox will break it. The only solution, I think, would be to use javascript or css to hide it. Something like this will work: function hide_slug_box() { global $post; global … Read more

What is the difference between get_page_link and get_permalink functions?

When i explored the WordPress core for this answer i found that get_permalink() function internally calls get_page_link() function for getting permalink of page and it calls get_post_permalink() function to get permalink of post. Therefore either you use get_permalink() function or get_page_link() function, you will get same result. The difference between these two is get_page_link() function … Read more

Get current post id in functions.php

If you hook your localize script function to wp_enqueue_scripts, then you will have access to the global $post variable. As long as you pick a hook at or after ‘wp’ you should have access to the global $post. <?php add_action(‘wp_enqueue_scripts’, ‘YOUR_NAME_scripts’); function YOUR_NAME_scripts() { wp_enqueue_script(‘YOUR_NAME-js’); global $post; $params = array( ‘site_url’ => site_url(), ‘admin_ajax_url’ => … Read more

Redeclare a function in a child theme

Redeclaring a function in a child theme only works when the parent themes’ function is wrapped in a if( !function_exists( ‘function_name’ )): condition. Then you can simply just copy the complete function to the child theme and do whatever modifications you need to do. If the parent themes’ functions aren’t wrapped in that if conditional … Read more

+ More