假如你更新到 WordPress 的 4.2 版本，检察网页源代码你会发明 WordPress 会自动在加载一段用于支撑 emjo 脸色的剧本（JS+CSS）。关于大部份人来讲，这个是非常鸡肋的功用，再加上 GFW 的壮大气力，反而影响加载速率。
我们有两种解决要领：启用或禁用。
缘由剖析
剧本就是相似下面的代码：
<script type="text/javascript">
window._wpemojiSettings = {"baseUrl":"http:\/\/s.w.org\/images\/core\/emoji\/72x72\/","ext":".png","source":{"concatemoji":"http:\/\/devework.com\/wp-includes\/js\/wp-emoji-release.min.js?ver=4.2"}};
!function(a,b,c){function d(a){var c=b.createElement("canvas"),d=c.getContext&&c.getContext("2d");return d&&d.fillText?(d.textBaseline="top",d.font="600 32px Arial","flag"===a?(d.fillText(String.fromCharCode(55356,56812,55356,56807),0,0),c.toDataURL().length>3e3):(d.fillText(String.fromCharCode(55357,56835),0,0),0!==d.getImageData(16,16,1,1).data[0])):!1}function e(a){var c=b.createElement("script");c.src=a,c.type="text/javascript",b.getElementsByTagName("head")[0].appendChild(c)}var f;c.supports={simple:d("simple"),flag:d("flag")},c.supports.simple&&c.supports.flag||(f=c.source||{},f.concatemoji?e(f.concatemoji):f.wpemoji&&f.twemoji&&(e(f.twemoji),e(f.wpemoji)))}(window,document,window._wpemojiSettings);
</script>
<style type="text/css">
img.wp-smiley,
img.emoji {
display: inline !important;
border: none !important;
box-shadow: none !important;
height: 1em !important;
width: 1em !important;
margin: 0 .07em !important;
vertical-align: -0.1em !important;
background: none !important;
padding: 0 !important;
}
</style>
由于WordPress 更新 4.2 的一个新增功用就是支撑 emjo 脸色，但看部份加载源居然是 wp.org 的 js 文件。关于大部份人来讲，这个是非常鸡肋的功用。
禁用：移除 WordPress 4.2 中前台自动加载的 emoji 剧本
既然功用鸡肋，不如直接移撤除来得越发快速。代码提取自 Disable Emojis 插件，能够放在主题目录下的 functions.php 文件中：
/**
* Disable the emoji's
*/
function 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_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_action( 'init', 'disable_emojis' );
/**
* 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();
}
}
启用：转存至当地挪用 Emoji 脸色
WordPress 官方将此功用会写入正式版一定有其来由。但我们晓得 WP 的 CDN 早就被*掉，唯一要领就是转存到当地，使 WP 辨认当地 Emoji 脸色。
Twitter Emoji 脸色包下载，下载后直接解压至主题目录，文件夹名稳定。将以下代码放在主题目录下的 functions.php 文件中：
//起首补全wp的脸色库
function smilies_reset() {
global $wpsmiliestrans, $wp_smiliessearch;
// don't bother setting up smilies if they are disabled
if (!get_option('use_smilies')) {
return;
}
$wpsmiliestrans_fixed = array(
':mrgreen:' => "\xf0\x9f\x98\xa2",
':smile:' => "\xf0\x9f\x98\xa3",
':roll:' => "\xf0\x9f\x98\xa4",
':sad:' => "\xf0\x9f\x98\xa6",
':arrow:' => "\xf0\x9f\x98\x83",
':-(' => "\xf0\x9f\x98\x82",
':-)' => "\xf0\x9f\x98\x81",
':(' => "\xf0\x9f\x98\xa7",
':)' => "\xf0\x9f\x98\xa8",
':?:' => "\xf0\x9f\x98\x84",
':!:' => "\xf0\x9f\x98\x85",
);
$wpsmiliestrans = array_merge($wpsmiliestrans, $wpsmiliestrans_fixed);
}
//替代cdn途径
function static_emoji_url() {
return get_bloginfo('template_directory').'/72x72/';
}
function reset_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_action('admin_print_styles', 'print_emoji_styles');
add_filter('the_content', 'wp_staticize_emoji');
add_filter('comment_text', 'wp_staticize_emoji',50); //在转换为脸色后再转为静态图片
smilies_reset();
add_filter('emoji_url', 'static_emoji_url');
}
add_action('init', 'reset_emojis');
//输出脸色
function fa_get_wpsmiliestrans(){
global $wpsmiliestrans;
$wpsmilies = array_unique($wpsmiliestrans);
foreach($wpsmilies as $alt => $src_path){
$emoji = str_replace(array('&#x', ';'), '', wp_encode_emoji($src_path));
$output .= '<a class="add-smily" data-smilies="'.$alt.'"><img class="wp-smiley" src="'.get_bloginfo('template_directory').'/72x72/'. $emoji .'png" /></a>';
}
return $output;
}
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