The reason you see the default value is that you are adding the filter after the filter has been applied, which results in the default value being used. The filter is applied when the object is constructed, which I’m assuming is before admin_init. If it’s after admin_init it won’t work either, but that’s because the … Read more
WordPress has a template_include filter which you can use. // Add a filter to ‘template_include’ hook add_filter( ‘template_include’, ‘wpse_force_template’ ); function wpse_force_template( $template ) { // If the current url is an archive of any kind if( is_archive() ) { // Set this to the template file inside your plugin folder $template = WP_PLUGIN_DIR .”https://wordpress.stackexchange.com/”. … Read more
Sure. You could hook the save_post action, use WP_Http class to download it and then insert it as an attachment using wp_insert_attachment and wp_update_attachment_metadata(). It’s not trivial but shouldn’t be that hard.
It is were me I’d just use different plugins; not sure if you’ll find one that does all of them and if so finding it will be happenstance. Or just code it directly into your theme (unless you are concerned about switching or upgrading themes.) Each of those is very trivial to do. Actually these … Read more
This is the plugin used on WordPress.com: http://wordpress.org/extend/plugins/syntaxhighlighter/
There’s an excellent post here which, while it might not be completely balanced (it sets out from the start that it is against external commenting systems), it offers a good view of the cons of such systems. A quick summary of three main points (a mixture of my personal opinions and from the blog post): … Read more
The short version: Figure out how much it costs you to eat, go to movies, pay utilities, pay taxes, etc., each month. Divide that by the number of working hours in a month. Congratulations, that’s your minimum hourly rate. Get the specs in writing, as detailed as possible. Then figure out how long it will … Read more
Bad Behavior does two things: It checks the HTTP request and sees if it is as per the standard or not. Usually spammers don’t write their scripts so well as to be fully compliant with the HTTP standard. Bad Behavior can make out poorly scripted HTTP requests from properly scripted ones (which would be sent … Read more
Any database changes WP itself needs are performed automatically. On first load after core update you will get (if required) special page that will say that database update is required and perform that update. No actions required from you really. Changes and updates to database by plugins can vary and not many plugins actually need … Read more
I would recommend W3 Total Cache. It optimizes over several different aspects of the site (HTML, database, etc.) and I haven’t ran into any issues with it.