先來看看怎樣取得單個漢字的拼音首字母,請看下面這個函數,它支援GBK和UTF8編碼:
代碼如下 |
複製代碼 |
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 >= -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 $asc <= -10247) return "Z"; return null; } |
以上函數返回單個漢字的拼音首字母。
當需要處理中文字串時,只需要重新寫一個函數,用來取得一串漢字的拼音首字母。
代碼如下 |
複製代碼 |
function pinyin1($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 $ret; } 上面這個函數就是擷取漢字拼音首字母的函數,使用樣本: echo pinyin1('這是中文字串'); |
結果輸出:ZSZWZFC
補充在 getfirstchar函數中我們有兩種寫法
第一種是我們上面用到的例子
代碼如下 |
複製代碼 |
function getfirstchar($s0){ $fchar = ord($s0{0}); if($fchar >= ord("A") and $fchar <= ord("z") )return strtoupper($s0{0}); |
而另一種是我們使用的數字方法了,也比較簡單了。
代碼如下 |
複製代碼 |
function getFirstChar($string) { $firstCharOrd = ord(strtoupper($string{0})); if (($firstCharOrd >= 65 && $firstCharOrd <= 91) || ($firstCharOrd >= 48 && $firstCharOrd <= 57)) return strtoupper($string{0}); |