functions.php

<?php
/**
 * Theme's functions.php.
 *
 * @package twentytwentythree-fedora-fr
 */

// Exit if accessed directly.
if ( ! defined( 'ABSPATH' ) ) {
	exit;
}

// Remove version of WordPress from the HTML Header.
remove_action( ' wp_head', 'wp_generator' );

// Remove the REST API lines from the HTML Header.
remove_action( 'wp_head', 'rest_output_link_wp_head', 10 );
remove_action( 'wp_head', 'wp_oembed_add_discovery_links', 10 );


/**
 * Enqueue the css
 */
function fedorafr_theme_enqueue_styles() {
	$version = wp_get_theme()->get( 'Version' );
	wp_enqueue_style( 'child-style', get_stylesheet_uri(), array( 'parenthandle' ), $version );
	wp_enqueue_style( 'fedorafr-style', get_stylesheet_uri(), array(), $version );
}
add_action( 'wp_enqueue_scripts', 'fedorafr_theme_enqueue_styles' );


/**
 * RSS links from the HTML Header.
 */
function fedorafr_rss() {
	$url = get_bloginfo( 'url' );

	// Disable built-in RSS from the HTML Header.
	remove_action( 'wp_head', 'feed_links', 2 );
	remove_action( 'wp_head', 'feed_links_extra', 3 );

	if ( strpos( $url, 'planet' ) !== false ) {
		add_action(
			'wp_head',
			function() {
				echo '<link rel="alternate" type="application/rss+xml" title="RSS 2.0 Feed" href="' . esc_url( get_bloginfo( 'rss2_url' ) ) . '" />';
			}
		);
	}
}
add_action( 'init', 'fedorafr_rss' );


/**
 * Remove Emoji from WP.
 */
function fedorafr_disable_emojis() {
	remove_action( 'wp_head', 'print_emoji_detection_script', 7 );
	remove_action( 'admin_print_scripts', 'print_emoji_detection_script' );
	remove_action( 'wp_print_styles', 'print_emoji_styles' );
	remove_filter( 'the_content_feed', 'wp_staticize_emoji' );
	remove_action( 'admin_print_styles', 'print_emoji_styles' );
	remove_filter( 'comment_text_rss', 'wp_staticize_emoji' );
	remove_filter( 'wp_mail', 'wp_staticize_emoji_for_email' );
	add_filter( 'tiny_mce_plugins', 'fedorafr_disable_emojis_tinymce' );
}
add_action( 'init', 'fedorafr_disable_emojis' );


/**
 * Remove Emoji from WP TinyMCE.
 *
 * @param array $plugins List of plugins.
 */
function fedorafr_disable_emojis_tinymce( $plugins ) {
	if ( is_array( $plugins ) ) {
		return array_diff( $plugins, array( 'wpemoji' ) );
	} else {
		return array();
	}
}