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php add_action( 'save_post', 'wpse41912_save_post' ); function wpse41912_save_post() { // do stuff } If you want your functions to fire only when a post is being edited, you can hook into edit_post …

The WordPress environment is loaded when a theme's functions.php file loads, but many plugins/themes/core functions don't register taxonomies until later. …

Essentially you hook in some place late after WordPress knows what page is requested (like template_redirect), use one of the conditional functions and either use $wp_query->set_404() or just redirect …

No, there's nothing in the core like that. You can set a cookie and do it simply enough (warning: untested code follows). <?php function is_first_time() { if (isset($_COOKIE['_wp_first_time']) | …

The first thing to remember about the post editing screen is that everything (except for the post title, editors, permalink, etc.) is a meta box. Since you can easily add and remove meta boxes, there …

I would keep the primary content field and add a metabox + a secondary instance of the wp editor (using the handy wp_editor function). Custom field values are stored in the database as LONGTEXT, so t …

You can filter the default comment_form arguments (which is what's causing the "leave a reply"). Just drop this in functions.php or in a plugin file. It would probably be better to put it in a plugi …

Are there hooks in those functions/whatever that you could used to accomplish the same thing as redefining the variable? …

Allows for more generic template location * without the use of the other get_*_template() functions. * * @since 1.5.0 * * @param string $type Filename without extension. …

Instead of removing the shortcode, re-register it with a function that returns an empty string (or something that casts to an empty string). You can use the built in __return_empty_string. This will r …

The social network button you posted comes in two distinct parts. First, the button itself is defined by the anchor tag. <a href="http://svejo.net/submit/?url=[your url]" data-url="[your url]" …

show_user_profile is the wrong hook to use. You should redirect before anything gets sent to the browser (eg. before headers are sent). Fortunately there are actions that happen much earlier: load-{ …

submitting & duplicating the rating data on page refresh. If it's only an issue for page refreshes redirect the user after form submission. This will prevent re-submission because the browsers c …

There is no theme equivalent of register_activation_hook for plugins -- there are a few hacks. Why? Because a theme is a skin. Only functionality specifically related to the display of content should …