Created
August 3, 2023 16:29
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(WP) WordPress Optimizations Script
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| <?php | |
| /** | |
| * | |
| * Scripts and actions to optimize WordPress | |
| * | |
| */ | |
| // Remove block editor | |
| add_filter( 'use_block_editor_for_post', '__return_false' ); | |
| // Remove Unnecessary Code from wp_head | |
| remove_action('wp_head', 'rsd_link'); | |
| remove_action('wp_head', 'wlwmanifest_link'); | |
| remove_action('wp_head', 'wp_generator'); | |
| remove_action( 'wp_head', 'wp_shortlink_wp_head'); | |
| remove_action('wp_head', 'start_post_rel_link'); | |
| remove_action('wp_head', 'index_rel_link'); | |
| remove_action('wp_head', 'adjacent_posts_rel_link'); | |
| remove_action( 'wp_head', 'feed_links', 2 ); | |
| //Remove JQuery migrate | |
| add_action('wp_default_scripts', function($scripts) { | |
| if (!is_admin() && isset($scripts->registered['jquery'])) { | |
| $script = $scripts->registered['jquery']; | |
| if ($script->deps) { // Check whether the script has any dependencies | |
| $script->deps = array_diff($script->deps, array( | |
| 'jquery-migrate' | |
| )); | |
| } | |
| } | |
| }); | |
| // Remove oEmbed | |
| remove_action( 'wp_head', 'wp_oembed_add_discovery_links', 10 ); | |
| remove_action( 'wp_head', 'wp_oembed_add_host_js' ); | |
| remove_action('rest_api_init', 'wp_oembed_register_route'); | |
| remove_filter('oembed_dataparse', 'wp_filter_oembed_result', 10); | |
| // Disable Trackbacks and Pings | |
| add_action( 'pre_ping', 'c45_internal_pingbacks' ); | |
| add_filter( 'wp_headers', 'c45_x_pingback'); | |
| add_filter( 'bloginfo_url', 'c45_pingback_url') ; | |
| add_filter( 'bloginfo', 'c45_pingback_url') ; | |
| add_filter( 'xmlrpc_enabled', '__return_false' ); | |
| add_filter( 'xmlrpc_methods', 'c45_xmlrpc_methods' ); | |
| // Disable internal pingbacks | |
| function c45_internal_pingbacks( &$links ) { | |
| foreach ( $links as $l => $link ) { | |
| if ( 0 === strpos( $link, get_option( 'home' ) ) ) { | |
| unset( $links[$l] ); | |
| } | |
| } | |
| } | |
| // Disable x-pingback | |
| function c45_x_pingback( $headers ) { | |
| unset( $headers['X-Pingback'] ); | |
| return $headers; | |
| } | |
| // Remove pingback URLs | |
| function c45_pingback_url( $output, $show='') { | |
| if ( $show == 'pingback_url' ) $output = ''; | |
| return $output; | |
| } | |
| // Disable XML-RPC methods | |
| function c45_xmlrpc_methods( $methods ) { | |
| unset( $methods['pingback.ping'] ); | |
| return $methods; | |
| } | |
| // Disable the emoji's | |
| add_action( 'init', function() { | |
| 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_action( 'admin_print_styles', 'print_emoji_styles' ); | |
| remove_filter( 'the_content_feed', 'wp_staticize_emoji' ); | |
| remove_filter( 'comment_text_rss', 'wp_staticize_emoji' ); | |
| remove_filter( 'wp_mail', 'wp_staticize_emoji_for_email' ); | |
| add_filter( 'tiny_mce_plugins', 'disable_emojis_tinymce' ); | |
| add_filter( 'wp_resource_hints', 'disable_emojis_remove_dns_prefetch', 10, 2 ); | |
| }); | |
| // Filter function used to remove the tinymce emoji plugin. | |
| function disable_emojis_tinymce( $plugins ) { | |
| if ( is_array( $plugins ) ) { | |
| return array_diff( $plugins, array( 'wpemoji' ) ); | |
| } else { | |
| return array(); | |
| } | |
| } | |
| // Remove emoji CDN hostname from DNS prefetching hints. | |
| function disable_emojis_remove_dns_prefetch( $urls, $relation_type ) { | |
| if ( 'dns-prefetch' == $relation_type ) { | |
| /** This filter is documented in wp-includes/formatting.php */ | |
| $emoji_svg_url = apply_filters( 'emoji_svg_url', 'https://s.w.org/images/core/emoji/2/svg/' ); | |
| $urls = array_diff( $urls, array( $emoji_svg_url ) ); | |
| } | |
| return $urls; | |
| } | |
| // Clean up output of stylesheet <link> tags | |
| function clean_style_tag($input) { | |
| preg_match_all("!<link rel='stylesheet'\s?(id='[^']+')?\s+href='(.*)' type='text/css' media='(.*)' />!", $input, $matches); | |
| if (empty($matches[2])) { | |
| return $input; | |
| } | |
| // Only display media if it is meaningful | |
| $media = $matches[3][0] !== '' && $matches[3][0] !== 'all' ? ' media="' . $matches[3][0] . '"' : ''; | |
| return '<link rel="stylesheet" href="' . $matches[2][0] . '"' . $media . '>' . "\n"; | |
| } | |
| add_filter('style_loader_tag', 'clean_style_tag'); |
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