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);  
}