php中实现将姓名拆分为姓氏和名字

之前有分享了用javascript在客户端进行姓名拆分的方法，后应项目需要，又用PHP实现了，贴出来 跟大家分享交流：

/**
 * 把全名拆分为姓氏和名字
 * @param string $fullname 全名
 * @return array 一维数组,元素一是姓,元素二为名
 * @author: 风柏杨<waitatlee@163.com>
 */

function splitName($fullname){
     $hyphenated = array('欧阳','太史','端木','上官','司马','东方','独孤','南宫','万俟','闻人','夏侯','诸葛','尉迟','公羊','赫连','澹台','皇甫',
        '宗政','濮阳','公冶','太叔','申屠','公孙','慕容','仲孙','钟离','长孙','宇文','城池','司徒','鲜于','司空','汝嫣','闾丘','子车','亓官',
        '司寇','巫马','公西','颛孙','壤驷','公良','漆雕','乐正','宰父','谷梁','拓跋','夹谷','轩辕','令狐','段干','百里','呼延','东郭','南门',
        '羊舌','微生','公户','公玉','公仪','梁丘','公仲','公上','公门','公山','公坚','左丘','公伯','西门','公祖','第五','公乘','贯丘','公皙',
        '南荣','东里','东宫','仲长','子书','子桑','即墨','达奚','褚师');
        $vLength = mb_strlen($fullname, 'utf-8');
        $lastname = '';
        $firstname = '';//前为姓,后为名
        if($vLength > 2){
            $preTwoWords = mb_substr($fullname, 0, 2, 'utf-8');//取命名的前两个字,看是否在复姓库中
            if(in_array($preTwoWords, $hyphenated)){
                $lastname = $preTwoWords;
                $firstname = mb_substr($fullname, 2, 10, 'utf-8');
            }else{
                $lastname = mb_substr($fullname, 0, 1, 'utf-8');
                $firstname = mb_substr($fullname, 1, 10, 'utf-8');
            }
        }else if($vLength == 2){//全名只有两个字时,以前一个为姓,后一下为名
            $lastname = mb_substr($fullname ,0, 1, 'utf-8');
            $firstname = mb_substr($fullname, 1, 10, 'utf-8');
        }else{
            $lastname = $fullname;
        }
        return array($lastname, $firstname);
}