~~~ //獲取單個漢字拼音首字母。注意:此處不要糾結。漢字拼音是沒有以U和V開頭的 function GetFirst($str) { $str = iconv("UTF-8", "gb2312", $str);//編碼轉換 if (preg_match("/^[\x7f-\xff]/", $str)) { $fchar = ord($str{0}); if ($fchar >= ord("A") and $fchar <= ord("z")) return strtoupper($str{0}); $a = $str; $val = ord($a{0}) * 256 + ord($a{1}) - 65536; if ($val >= -20319 and $val <= -20284) return "A"; if ($val >= -20283 and $val <= -19776) return "B"; if ($val >= -19775 and $val <= -19219) return "C"; if ($val >= -19218 and $val <= -18711) return "D"; if ($val >= -18710 and $val <= -18527) return "E"; if ($val >= -18526 and $val <= -18240) return "F"; if ($val >= -18239 and $val <= -17923) return "G"; if ($val >= -17922 and $val <= -17418) return "H"; if ($val >= -17417 and $val <= -16475) return "J"; if ($val >= -16474 and $val <= -16213) return "K"; if ($val >= -16212 and $val <= -15641) return "L"; if ($val >= -15640 and $val <= -15166) return "M"; if ($val >= -15165 and $val <= -14923) return "N"; if ($val >= -14922 and $val <= -14915) return "O"; if ($val >= -14914 and $val <= -14631) return "P"; if ($val >= -14630 and $val <= -14150) return "Q"; if ($val >= -14149 and $val <= -14091) return "R"; if ($val >= -14090 and $val <= -13319) return "S"; if ($val >= -13318 and $val <= -12839) return "T"; if ($val >= -12838 and $val <= -12557) return "W"; if ($val >= -12556 and $val <= -11848) return "X"; if ($val >= -11847 and $val <= -11056) return "Y"; if ($val >= -11055 and $val <= -10247) return "Z"; } else { return null; } } ~~~