There is not much to it, really. During the loading of WordPress engine wp-settings.php file is processed. Among other things this files calls wp_get_active_and_valid_plugins() function, that gets list of activated (through admin interface) plugins from active_plugins option (stored in database). For each active plugin its main file (the one holding plugin header) is included and … Read more
I had a very similar problem which I solved the other day. In my case I wanted to allow users to choose their own password, and then activate their account via email. There’s alot to this, so I’ll just outline how to I achieved the e-mail verification. First, I used user_register (runs when a user … Read more
You technically don’t have to set a nickname, it will be filled with your username if you clear the field out. Display name is selectable between the user’s username, first name, last name, first/last, or last/first, or nickname. The nickname exists to give you an option to set display name to something other than your … Read more
Use wp_script_is() to check if a script is in the queue. function add_my_scripts() { $doing_jquery = wp_script_is(‘jquery’, ‘queue’); $doing_prototype = wp_script_is(‘prototype’, ‘queue’); var_dump($doing_jquery, $doing_prototype); } add_action(‘wp_print_scripts’, ‘add_my_scripts’);
You can get the instance ID with echo $this->id; ($this is the class instance) The only time you can’t get this id is from the form() function, right after you just dropped the widget (here‘s the reason why)
The add_settings_section() function simply registers a form section with a certain slug with WordPress. In order to get the section and all the fields you’ve added to it to display on a certain menu page, you need to include the do_settings_sections($sections-slug) method in the menu’s callback. This is, of course, assuming you are using the … Read more
An alternative way is to use static class methods in plugins, and optionally write functions as alias: in Plugin: class Pluginslug_Foo { static $foo = ‘Bar!’; public static function bar() { return self::$foo; } } if ( ! function_exists( ‘pluginslug_bar’ ) ) { function pluginslug_bar() { echo Pluginslug_Foo::bar(); } } in Theme: if ( function_exists( … Read more
s_ha_dum’s answer didn’t work for me, but this did: /** * Completely disable term archives for this taxonomy. * @param string $taxonomy WordPress taxnomy name */ function kill_taxonomy_archive($taxonomy){ add_action(‘pre_get_posts’, function($qry) { if (is_admin()) return; if (is_tax($taxonomy)){ $qry->set_404(); } } ); }
I believe part of what you’re looking for is the WP_Embed class defined in wp-includes/media.php. It implements a framework for automatically replacing urls with the output of embed handlers. I’m afraid you’ll have to do the deeper research yourself (this was apparently introduces in 2.9.0, so documentation might still be thin). I doubt WordPress core … Read more
Save yourself a headache and make a class. The static variable can be accessed like a global once it’s loaded. Just be sure the class exists before you try to use it! if ( ! class_exists( ‘WPSE_20150123_Plugin’ ) ) { class WPSE_20150123_Plugin { // our variable that will be set and read back later public … Read more