php获取中文字符拼音首字母实例
在php中如果我们要获取汉字的拼音第一个字母我们先要了解asc码的范围码了,我们只要知道这个值上下限就可以使用php中的ord来获取我相关的汉字拼音了.
实例1,代码如下:
function getFirstCharter($str) { if (emptyempty($str)) {return '';} $fchar = ord($str{0}); if ($fchar>=ord('A') && $fchar<=ord('z')) return strtoupper($str{0}); $s1 = iconv('UTF-8', 'gb2312', $str); $s2 = iconv('gb2312', 'UTF-8', $s1); $s = $s2 == $str ? $s1 : $str; $asc = ord($s{0})*256 + ord($s{1}) - 65536; if ($asc>=-20319 && $asc<=-20284) return 'A'; if ($asc>=-20283 && $asc<=-19776) return 'B'; if ($asc>=-19775 && $asc<=-19219) return 'C'; if ($asc>=-19218 && $asc<=-18711) return 'D'; if ($asc>=-18710 && $asc<=-18527) return 'E'; if ($asc>=-18526 && $asc<=-18240) return 'F'; if ($asc>=-18239 && $asc<=-17923) return 'G'; if ($asc>=-17922 && $asc<=-17418) return 'H'; if ($asc>=-17417 && $asc<=-16475) return 'J'; if ($asc>=-16474 && $asc<=-16213) return 'K'; if ($asc>=-16212 && $asc<=-15641) return 'L'; if ($asc>=-15640 && $asc<=-15166) return 'M'; if ($asc>=-15165 && $asc<=-14923) return 'N'; if ($asc>=-14922 && $asc<=-14915) return 'O'; if ($asc>=-14914 && $asc<=-14631) return 'P'; if ($asc>=-14630 && $asc<=-14150) return 'Q'; if ($asc>=-14149 && $asc<=-14091) return 'R'; if ($asc>=-14090 && $asc<=-13319) return 'S'; if ($asc>=-13318 && $asc<=-12839) return 'T'; if ($asc>=-12838 && $asc<=-12557) return 'W'; if ($asc>=-12556 && $asc<=-11848) return 'X'; if ($asc>=-11847 && $asc<=-11056) return 'Y'; if ($asc>=-11055 && $asc<=-10247) return 'Z'; return null; }
例如:echo getFirstCharter("程序员3aj.cn"); // 结果将输出:C
实例二,代码如下:
<?php $limit=array( //gb2312 拼音排序 array(45217,45252), //A array(45253,45760), //B array(45761,46317), //C array(46318,46825), //D array(46826,47009), //E array(47010,47296), //F array(47297,47613), //G array(47614,48118), //H array(0,0), //I array(48119,49061), //J array(49062,49323), //K array(49324,49895), //L array(49896,50370), //M array(50371,50613), //N array(50614,50621), //O array(50622,50905), //P array(50906,51386), //Q array(51387,51445), //R array(51446,52217), //S array(52218,52697), //T array(0,0), //U array(0,0), //V array(52698,52979), //W array(52980,53688), //X array(53689,54480), //Y array(54481,55289), //Z ); $str="A:这是一个测试程序1"; $str= iconv("UTF-8","gb2312", $str); echo $str."</br>"; $i=0; while($i<strlen($str) ) { $tmp=bin2hex(substr($str,$i,1)); if($tmp>='B0'){ //汉字的开始 $t=getLetter(hexdec(bin2hex(substr($str,$i,2)))); printf("%c",$t==-1 ? '*' : $t ); $i+=2; } else{ printf("%s",substr($str,$i,1)); $i++; } } function getLetter($num){ global $limit; $char_index=65; foreach($limit as $k=>$v){ if($num>=$v[0] && $num<=$v[1]){ $char_index+=$k; return $char_index; } } return -1; }
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