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php实现获取汉字的首字母两个实例
时间:2013-10-19 编辑:简简单单 来源:一聚教程网
例1
主要功能是:功能明确,易于修改维护和扩展; 英文的字串:不变返回(包括数字);中文字符串:返回拼音首字符; 中英混合串: 返回拼音首字符和英文。该算法采用了二分法查找,修复了之前字母Z读取成Y的错误。好东西要收藏,故在此留下印记,以供后人考证!
代码如下 | 复制代码 |
/** /** |
例2
取汉字的asc区间然后返回汉字首字母了。
代码如下 | 复制代码 |
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 $asc <= -17418) return "I"; if($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 $asc <= -10247) return "Z"; return null; } function pinyin1($zh){ $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; } echo "这是中文字符串 "; echo pinyin1('这是中文字符串'); ?> |
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