获取多个汉字首字母(php)
1 <?php
2 function getfirstchar($s0){
3 $fchar = ord($s0{0});
4 if($fchar >= ord("A") and $fchar <= ord("z") )return strtoupper($s0{0});
5 $s1 = iconv("UTF-8","gb2312", $s0);
6 $s2 = iconv("gb2312","UTF-8", $s1);
7 if($s2 == $s0){$s = $s1;}else{$s = $s0;}
8 $asc = ord($s{0}) * 256 + ord($s{1}) - 65536;
9 if($asc >= -20319 and $asc <= -20284) return "A";
10 if($asc >= -20283 and $asc <= -19776) return "B";
11 if($asc >= -19775 and $asc <= -19219) return "C";
12 if($asc >= -19218 and $asc <= -18711) return "D";
13 if($asc >= -18710 and $asc <= -18527) return "E";
14 if($asc >= -18526 and $asc <= -18240) return "F";
15 if($asc >= -18239 and $asc <= -17923) return "G";
16 if($asc >= -17922 and $asc <= -17418) return "I";
17 if($asc >= -17417 and $asc <= -16475) return "J";
18 if($asc >= -16474 and $asc <= -16213) return "K";
19 if($asc >= -16212 and $asc <= -15641) return "L";
20 if($asc >= -15640 and $asc <= -15166) return "M";
21 if($asc >= -15165 and $asc <= -14923) return "N";
22 if($asc >= -14922 and $asc <= -14915) return "O";
23 if($asc >= -14914 and $asc <= -14631) return "P";
24 if($asc >= -14630 and $asc <= -14150) return "Q";
25 if($asc >= -14149 and $asc <= -14091) return "R";
26 if($asc >= -14090 and $asc <= -13319) return "S";
27 if($asc >= -13318 and $asc <= -12839) return "T";
28 if($asc >= -12838 and $asc <= -12557) return "W";
29 if($asc >= -12556 and $asc <= -11848) return "X";
30 if($asc >= -11847 and $asc <= -11056) return "Y";
31 if($asc >= -11055 and $asc <= -10247) return "Z";
32 return null;
33 }
34
35
36 function pinyin1($zh){
37 $ret = "";
38 $s1 = iconv("UTF-8","gb2312", $zh);
39 $s2 = iconv("gb2312","UTF-8", $s1);
40 if($s2 == $zh){$zh = $s1;}
41 for($i = 0; $i < strlen($zh); $i++){
42 $s1 = substr($zh,$i,1);
43 $p = ord($s1);
44 if($p > 160){
45 $s2 = substr($zh,$i++,2);
46 $ret .= getfirstchar($s2);
47 }else{
48 $ret .= $s1;
49 }
50 }
51 return $ret;
52 }
53 echo "北京信息学校<br/>";
54 echo pinyin1('北京信息学校');
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