PHP實現獲取中英文!首字母

2019-11-02 15:05:17

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　　本文給大家分享的是使用php簡單實現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參考下。

　　PHP實現獲取中英文按照首字母

1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 /** * */ 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("

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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; } }

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