让wordpress的注册完美支持中文名字的解决办法

将以下php代码复制到当前主题目录下的functions.php中，即可让WordPress支持使用中文用户名注册和登录：

function git_sanitize_user ($username, $raw_username, $strict) {
$username = wp_strip_all_tags( $raw_username );
$username = remove_accents( $username );
$username = preg_replace( '|%([a-fA-F0-9][a-fA-F0-9])|', '', $username );
$username = preg_replace( '/&.+?;/', '', $username ); // Kill entities
if ($strict) {
$username = preg_replace ('|[^a-z\p{Han}0-9 _.\-@]|iu', '', $username);
}
$username = trim( $username );
$username = preg_replace( '|\s+|', ' ', $username );
return $username;
}
add_filter ('sanitize_user', 'git_sanitize_user', 10, 3);
// 评论添加@，来自：http://www.ludou.org/wordpress-comment-reply-add-at.html
function git_comment_add_at( $comment_text, $comment = '') {
if( $comment->comment_parent > 0) {
$comment_text = '@'.get_comment_author( $comment->comment_parent ) . ' ' . $comment_text;
}
return $comment_text;
}
add_filter( 'comment_text' , 'git_comment_add_at', 20, 2);