本文给大家分享的是使用php简单实现的提取中英文字符的首字母的方法和示例,十分的使用,有需要的小伙伴可以参考下。
PHP实现获取中英文按照首字母
- /**
- *
- */
- function getfirstchar($s0){
- if($s0[0]=='I' || $s[0]=='i'){
- return "I";
- }elseif($s0[0]=='U' || $s[0]=='u'){
- return 'U';
- }elseif($s0[0]=='V' || $s[0]=='v'){
- return 'V';
- }else{
- $fchar = ord($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 >= -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;
- }
- }
以上所述就是本文的全部内容了,希望大家能够喜欢。
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