How to Override a Pluggable Function
Wrap it in a function_exists check: if( ! function_exists(‘some_pluggable_function’) ) { function some_pluggable_function() } }
plugins
Replacing Icons in the Dashboard
Yes, you can replace existing icons by overwriting them via CSS. Make sure to check if the existing icon is set via img or background-image and add some CSS to overwrite it with one of the available icons. You can find all available icons and the appropriate selector at the Dashicons Website. To replace the … Read more
WordPress plugin executing code twice
Quite simply, it’s loading more than once because you’re probably actually making more than one HTTP request to “WordPress”. You should not do anything like counting on a plugin load like this, because WordPress can load in many different situations, sometimes more than once for even a single page view. The wp-cron process, for example, … Read more
How does WordPress official repository estimate ‘Active Installs’ of a plugin?
Short answer: the update API. Whenever your WordPress install makes an update check, it’ll ping wordpress.org with information about all the plugins you have, versions etc., but also whether they are currently activated or not – they then aggregate all this data from all active WordPress installs and hey presto, you get an idea of … Read more
How to stop showing admin notice after close button has been clicked
Two ways to handle this. a. Attach a timer to the notice: You could attach a 3-second timer (or however long you wish) to the notice, as follows: <?php set_transient( “my-plugin”, “alive”, 3 ); add_action( ‘admin_notices’, function() { //Syntax correction if ( “alive” == get_transient( “my-plugin” ) ) { ?> <div class=”notice notice-success is-dismissible”> <p><?php … Read more
Changing title of a page dynamically from within a plugin
A post or page has only one title, the title tag <title> is the document title. The filter wp_title filters the output of wp_title() function, which was used before to output the title of the document. In WordPress 4.1, the title-tag support in themes was introduced and wp_get_document_title() is used instead of wp_title(). So, if … Read more
List of all existing WordPress plugins
http://plugins.svn.wordpress.org/ Good luck. It’s a very long list and Otto normally becomes very angry if someone try to scrape the complete SVN-Repo.
How to get the active theme’s slug?
You can get the slug in the options table, stored under the name stylesheet. echo get_option(‘stylesheet’);
how to change default icon of custom plugin?
Take a close look at add_menu_page hook, it provides argument to supply with icon url <?php add_menu_page( $page_title, $menu_title, $capability, $menu_slug, $function, $icon_url, $position ); http://codex.wordpress.org/Function_Reference/add_menu_page add_menu_page( __(‘Poll’,’menu-test’), __(‘Poll’,’menu-test’), ‘manage_options’, ‘manage-polls’, ‘poll_page’, ‘plugins_folder Or Theme folder url/icon.png’ );
Is it a good idea to edit an already existing plugin to add more functionality?
The most important question which you must ask yourself is Am I the author of the theme or plugin?. If your answer is yes, and you are responsible for the up keep of the plugin or theme, go ahead and change it and modify as you like. If your answer is no, then you should … Read more