tux255

<?php // For implementation instructions see: https://aceplugins.com/how-to-add-a-code-snippet/

/**
 * Disable WP 4.2 emoji
 */
function ace_remove_emoji() {

	add_filter( 'emoji_svg_url', '__return_false' );
	remove_action( 'admin_print_styles', 'print_emoji_styles' );
	remove_action( 'wp_head', 'print_emoji_detection_script', 7 );

tux255

### Testing if the client is a mobile or a desktop.
### The selection is based on the usual UA strings for desktop browsers.

## Testing a user agent using a method that reverts the logic of the
## UA detection. Inspired by notnotmobile.appspot.com.
map $http_user_agent $is_desktop {
    default 0;
    ~*linux.*android|windows\s+(?:ce|phone) 0; # exceptions to the rule
    ~*spider|crawl|slurp|bot 1; # bots
    ~*windows|linux|os\s+x\s*[\d\._]+|solaris|bsd 1; # OSes

tux255

Copy this code to function.php

//Sitemap XML

/*

  function to create sitemap.xml file in root directory of site

*/

tux255

<?php

/*
Use this just like `add_filter()`, and then run something that calls the filter (like
`new WP_Query`, maybe).

That's it. If the filter gets called again, your callback will not be.

This works around the common "filter sandwich" pattern where you have to remember to
call `remove_filter` again after your call.