You will first need to add some metaboxes to your posts. This has been answered a lot, and there are many posts on the internet about is, such as this full guide. After adding metaboxes, you can hook into the wp_head action hook and output your metadata. Here’s a simple piece of code that goes … Read more
If it’s a prebuilt theme (i.e. you downloaded it from WordPress.org or bought it somewhere), go to the author’s website and download a fresh copy. If it’s a custom theme, you’ll need to rely on your own backups – perhaps you’re auto backing up to a Dropbox, or you’re using a host that provides file … Read more
For anyone else who needs it, I solved it as follows via a plugin: (1) The first block of code needed to be triggered with: add_action( ‘wp_loaded’, ‘redirect_block’ ); (2) The second block involving redirects was originally after the wp(); call in wp-blog-header.php, so in the plugin it is triggered as follows: add_action( ‘wp’, ‘redirect_old_style_urls’ … Read more
On the official Wp github repository you can find the file you are talking about, but maybe check your wp version before, so that you grab the version of the file corresponding to your wp install. https://github.com/WordPress/WordPress/blob/master/wp-blog-header.php
Show preview of wordpress posts on external html sever
Ok, I’ve fixed it. Turns out that there was a php class name that was getting redeclared. Declared once in the theme, and once in the plugin.
wp-includes/general-template.php:2102 is the function wp_admin_css(). On the login page this function is called in login_header(). Your theme or some plugin trys to send an HTTP header after that, probably during the actions login_enqueue_scripts or login_head. wp-includes/option.php on:569 is in function wp_user_settings(); a cookie is set here. Cookies are HTTP headers, so that cannot work when … Read more
Okay, here is a simple example. init action loads before loading WordPress website. So we can use it to check some special conditions for allowing access to users. You should use this in functions.php function user_custom_redirect() { if ( ‘something’ === ‘something else’ ) { // let user view WordPress website } else { // … Read more
From the WordPress source code: “Set up the WordPress query.” (wp-includes/functions.php) The wp() method in turn calls the WP->main (wp-includes/class-wp.php), which has the following description: “Sets up all of the variables required by the WordPress environment. The action ‘wp’ has one parameter that references the WP object. It allows for accessing the properties and methods … Read more
See this WordPress support page for an explanation of what the first line does. The second line you can remove and it will get rid of those archive entries from the header output HTML. For the SEO impact, search engines should be just fine as long as you have a site map for your posts.