WordPress更新至4.2版本后调整了某些函数，听到最多的疑问便是评论表情都失效了。其实也不是啥太大的问题，只不过Wordpress更新至4.2以后评论表情函数名进行了变更而已，才导致了很多博客的表情全部都是叉叉。其实解决方法有很多种，今天，珞凡在这里介绍一种简单的方法帮助大家解决评论表情失效的问题。

将以下代码直接丢进主题functions.php即可：

/**
* 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.
*
* @param array $plugins
* @return array Difference betwen the two arrays
*/
function disable_emojis_tinymce( $plugins ) {
return array_diff( $plugins, array( ‘wpemoji’ ) );
}
function smilies_reset() {
global $wpsmiliestrans;

// don’t bother setting up smilies if they are disabled
if ( !get_option( ‘use_smilies’ ) )
return;

$wpsmiliestrans = array(
‘:mrgreen:’ => ‘icon_mrgreen.gif’,
‘:neutral:’ => ‘icon_neutral.gif’,
‘:twisted:’ => ‘icon_twisted.gif’,
‘:arrow:’ => ‘icon_arrow.gif’,
‘:shock:’ => ‘icon_eek.gif’,
‘:smile:’ => ‘icon_smile.gif’,
‘:???:’ => ‘icon_confused.gif’,
‘:cool:’ => ‘icon_cool.gif’,
‘:evil:’ => ‘icon_evil.gif’,
‘:grin:’ => ‘icon_biggrin.gif’,
‘:idea:’ => ‘icon_idea.gif’,
‘:oops:’ => ‘icon_redface.gif’,
‘:razz:’ => ‘icon_razz.gif’,
‘:roll:’ => ‘icon_rolleyes.gif’,
‘:wink:’ => ‘icon_wink.gif’,
‘:cry:’ => ‘icon_cry.gif’,
‘:eek:’ => ‘icon_surprised.gif’,
‘:lol:’ => ‘icon_lol.gif’,
‘:mad:’ => ‘icon_mad.gif’,
‘:sad:’ => ‘icon_sad.gif’,
‘8-)’ => ‘icon_cool.gif’,
‘8-O’ => ‘icon_eek.gif’,
‘:-(‘ => ‘icon_sad.gif’,
‘:-)’ => ‘icon_smile.gif’,
‘:-?’ => ‘icon_confused.gif’,
‘:-D’ => ‘icon_biggrin.gif’,
‘:-P’ => ‘icon_razz.gif’,
‘:-o’ => ‘icon_surprised.gif’,
‘:-x’ => ‘icon_mad.gif’,
‘:-|’ => ‘icon_neutral.gif’,
‘;-)’ => ‘icon_wink.gif’,
// This one transformation breaks regular text with frequency.
// ‘8)’ => ‘icon_cool.gif’,
‘8O’ => ‘icon_eek.gif’,
‘:(‘ => ‘icon_sad.gif’,
‘:)’ => ‘icon_smile.gif’,
‘:?’ => ‘icon_confused.gif’,
‘:D’ => ‘icon_biggrin.gif’,
‘:P’ => ‘icon_razz.gif’,
‘:o’ => ‘icon_surprised.gif’,
‘:x’ => ‘icon_mad.gif’,
‘:|’ => ‘icon_neutral.gif’,
‘;)’ => ‘icon_wink.gif’,
‘:!:’ => ‘icon_exclaim.gif’,
‘:?:’ => ‘icon_question.gif’,
);
}
smilies_reset();

最后，想补充的是，Wordpress 4.2修改了translate_smiley函数。使得输出的表情带样式（style），具体为style=”height: 1em; max-height: 1em;”。这可能会对我们的表情产生影响（我的是被压扁了），因为这个函数本身没有过滤器，所以无法添加过滤，对输出再解码也影响性能，只能修改源文件，来达到目的。具体位置在/wp-includes/formatting.php的第2114行。如下：

return sprintf( ‘<img src=”%s” alt=”%s” class=”wp-smiley” style=”height: 1em; max-height: 1em;” />’, esc_url( $src_url ), esc_attr( $smiley ) );

修改为：

return sprintf( ‘<img src=”%s” alt=”%s” class=”wp-smiley” />’, esc_url( $src_url ), esc_attr( $smiley ) );

其实就是删除这个样式。这样就不会对我们现有的表情产生任何影响了。

以上。