php實(shí)現(xiàn)姓名根據(jù)首字母排序的類與方法(實(shí)例代碼)

?php
public function getFirstChar($s){
$s0 = mb_substr($s,0,3); //獲取名字的姓
$s = iconv('UTF-8','gb2312', $s0); //將UTF-8轉(zhuǎn)換成GB2312編碼
//dump($s0);
if (ord($s0)>128) { //漢字開(kāi)頭，漢字沒(méi)有以U、V開(kāi)頭的
$asc=ord($s{0})*256+ord($s{1})-65536;
if($asc>=-20319 and $asc=-20284)return "A";
if($asc>=-20283 and $asc=-19776)return "B";
if($asc>=-19775 and $asc=-19219)return "C";
if($asc>=-19218 and $asc=-18711)return "D";
if($asc>=-18710 and $asc=-18527)return "E";
if($asc>=-18526 and $asc=-18240)return "F";
if($asc>=-18239 and $asc=-17760)return "G";
if($asc>=-17759 and $asc=-17248)return "H";
if($asc>=-17247 and $asc=-17418)return "I";
if($asc>=-17417 and $asc=-16475)return "J";
if($asc>=-16474 and $asc=-16213)return "K";
if($asc>=-16212 and $asc=-15641)return "L";
if($asc>=-15640 and $asc=-15166)return "M";
if($asc>=-15165 and $asc=-14923)return "N";
if($asc>=-14922 and $asc=-14915)return "O";
if($asc>=-14914 and $asc=-14631)return "P";
if($asc>=-14630 and $asc=-14150)return "Q";
if($asc>=-14149 and $asc=-14091)return "R";
if($asc>=-14090 and $asc=-13319)return "S";
if($asc>=-13318 and $asc=-12839)return "T";
if($asc>=-12838 and $asc=-12557)return "W";
if($asc>=-12556 and $asc=-11848)return "X";
if($asc>=-11847 and $asc=-11056)return "Y";
if($asc>=-11055 and $asc=-10247)return "Z";
}else if(ord($s)>=48 and ord($s)=57){ //數(shù)字開(kāi)頭
switch(iconv_substr($s,0,1,'utf-8')){
case 1:return "Y";
case 2:return "E";
case 3:return "S";
case 4:return "S";
case 5:return "W";
case 6:return "L";
case 7:return "Q";
case 8:return "B";
case 9:return "J";
case 0:return "L";
}
}else if(ord($s)>=65 and ord($s)=90){ //大寫(xiě)英文開(kāi)頭
return substr($s,0,1);
}else if(ord($s)>=97 and ord($s)=122){ //小寫(xiě)英文開(kāi)頭
return strtoupper(substr($s,0,1));
}
else
{
return iconv_substr($s0,0,1,'utf-8');
//中英混合的詞語(yǔ)，不適合上面的各種情況，因此直接提取首個(gè)字符即可
}
}
public function addPeople()
{
$userName = array('張三','馬大帥','李四','王五','小二','貓蛋','狗蛋','王花','三毛','小明','李剛','張飛');
sort($userName);
foreach($userName as $name){
$char = $this->getFirstChar($name);
$nameArray = array();
if(count($charArray[$char])!=0){
$nameArray = $charArray[$char];
}
array_push($nameArray,$name);
$charArray[$char] = $nameArray;
}
ksort($charArray);
$this->assign('_list',$charArray);
}

foreach name="_list" item="vo" key="k">
p>{$k}/p>
foreach name="vo" item="l">
span class="name">{$l}/span>
/foreach>
/foreach>