PHP获取字符串所有汉字首字母

效果图

写两个PHP函数

第一个

function getfirstchar($s0){   
    $fchar = ord($s0{0});
    if($fchar >= ord("A") and $fchar <= ord("z") )return strtoupper($s0{0});
    $s1 = iconv("UTF-8","gb2312", $s0);
    $s2 = iconv("gb2312","UTF-8", $s1);
    if($s2 == $s0){$s = $s1;}else{$s = $s0;}
    $asc = ord($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 $asc <= -17923) return "g";
    if($asc >= -17922 and $asc <= -17418) return "h";
    if($asc >= -17922 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";
    return NULL;
    //return $s0;
}

第二个

function pinyin_long($zh){  //获取整条字符串所有汉字拼音首字母
    $ret = "";
    $s1 = iconv("UTF-8","gb2312", $zh);
    $s2 = iconv("gb2312","UTF-8", $s1);
    if($s2 == $zh){$zh = $s1;}
    for($i = 0; $i < strlen($zh); $i++){
        $s1 = substr($zh,$i,1);
        $p = ord($s1);
        if($p > 160){
            $s2 = substr($zh,$i++,2);
            $ret .= getfirstchar($s2);
        }else{
            $ret .= $s1;
        }
    }
    return $ret;
}

写jq和输入框

输入框给id和name,(用户在id为“name”的输入框输入,在id为“bs”的input返回首字母缩写):

<div class="col-sm-10">
   <input type="text" value="" name="name" class="form-control" id="name">
</div>
<div class="col-sm-10">
   <input type="text" value="" class="form-control" id="bs" readonly="readonly">
</div>

script代码:先绑定事件!

$('#name').bind('input name', function() { getstr(); });

然后是getstr方法,原理就是用户每输入字符,然后就执行这个方法,然后这个方法不管去ajax请求也好,或者你用什么方法也好,然后返回数据添加到input框的value里面就行

  function getstr() {
        var name = $("#name").val();
        $.post("请求地址", { name: name}, function(data) {
            //console.log(data);
            $("#bs").val(data);
        })
    }

后端你可以直接echo

$n=$_POST['name'];
echo pinyin_long($n);

警告!!实际开发环境请注意安全策略!本文仅作为代码分享!!并不代表作者为正式环境使用!!!!

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