php 按照中文字母名字排序，并把相应的头像显示出来

//排序
public function getFirstChar($s){

$s0 = mb_substr($s,0,3); //获取名字的姓

$s = iconv('UTF-8','gb2312', $s0); //将UTF-8转换成GB2312编码

$x =ord($s0);

if (ord($s0)>128) { //汉字开头，汉字没有以U、V开头的

$asc=ord($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){ //数字开头

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){ //大写英文开头

return substr($s,0,1);

}else if(ord($s)>=97 and ord($s)<=122){ //小写英文开头

return strtoupper(substr($s,0,1));

}

else

{

return iconv_substr($s0,0,1,'utf-8');

//中英混合的词语，不适合上面的各种情况，因此直接提取首个字符即可

}

}
// 拼友列表
public function doPageFriend(){
global $_GPC,$_W;
$uniacid = $_W['uniacid'];
$friends = pdo_fetchall("SELECT * FROM ".tablename("pinba_pinyou")."where uniacid=:uniacid",array(":uniacid"=>$uniacid));
foreach($friends as &$value){

$userName[] = array("name"=>$value['x_name'],"thumb"=>$_W['attachurl'].$value['x_thumb']);
}

$charArray = $this->addPeople($userName);

return $this->result(0,"success",$charArray);
}
public function addPeople($userName)

{

sort($userName);
foreach($userName as &$name){

$char = $this->getFirstChar($name['name']);

$nameArray = array();

if(count($charArray[$char])!=0){

$nameArray = $charArray[$char];
}

array_push($nameArray,$name);

$charArray[$char] = $nameArray;

}

ksort($charArray);

return $charArray;

}

前台显示

<block wx:for="{{friends}}" wx:key="gro" wx:for-item="group" data-index="{{index}}">

<view class="flex" id="{{group.groupName}}">

<view class="group-name"><text>{{index}}</text></view>

<view class="flex group-users">

<view wx:for="{{group}}" wx:key="ss" wx:for-item="user" wx:for-index="idx" class="user box box-lr" bindtap='pinyou_Xq' data-id='{{id}}'>

<view class="user-avatar box box-lr box-pack-center box-align-center">

<image class="user-avatar-img" src="{{user.thumb}}"></image>

</view>

<view class="flex user-name font28">{{user.name}}</view>

</view>

</view>

</view>

</block>