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php按照中文首字母排序
1> 网络上很多php的工具类可以将汉字转为拼音；
2> 将拼音进行排序即可
另一种则是类似mysql转码方式：
1 foreach ($array as $key=>$value) 2 { 3 $new_array[$key] = iconv(‘UTF-8‘, ‘GBK‘, $value); 4 } 1 foreach ($array as $key=>$value) 2 { 3 $new_array[$key] = iconv(‘UTF-8‘, ‘GBK‘, $value); 4 } 5 asort($new_array); 6 foreach ($new_array as $key=>$value) 7 { 8 $array[$key] = iconv(‘GBK‘, ‘UTF-8‘, $value); 9 } 5 asort($new_array); 6 foreach ($new_array as $key=>$value) 7 { 8 $array[$key] = iconv(‘GBK‘, ‘UTF-8‘, $value); 9 }
综合案列
//按中文首字母排序 function orderByName($userName,$order=‘asc‘,$key=‘jlname‘){ foreach($userName as $name){ if(is_array($name))$char = getFirstChar($name[$key]); elseif(is_string($name))$char= getFirstChar($name); $nameArray = array();//将姓名按照姓的首字母与相对的首字母键进行配对 if(count($charArray[$char])!=0)$nameArray = $charArray[$char]; array_push($nameArray,$name); $charArray[$char] = $nameArray; } if(strtolower($order)==‘asc‘)ksort($charArray);elseif(strtolower($order)==‘desc‘)krsort($charArray); $newarr = array(); $i=0; foreach($charArray as $ck=>$cv){ if(is_array($cv)){ foreach($cv as $cck=>$ccv){ $newarr[$i++] = $ccv; } }else{ $newarr[$i++]=$cv; } } /*echo ‘按首字母排序前：<br>‘; print_r($charArray); //根据键值对排序 echo ‘按首字母排序后：<br>‘; print_r($charArray);*/ return $newarr; } //获取中文的首字母 function getFirstChar($s){ $s0 = mb_substr($s,0,1,‘utf-8‘);//获取名字的姓 $s = iconv(‘UTF-8‘,‘GBK‘, $s0);//将UTF-8转换成GB2312编码 if(ord($s0)>128){//汉字开头，汉字没有以U、V开头的 $asc=ord($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 $asc<=-17760)return "G"; if($asc>=-17759 and $asc<=-17248)return "H"; if($asc>=-17247 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 $asc<=-10247)return "Z"; }elseif(ord($s)>=48 and ord($s)<=57){//数字开头 switch(iconv_substr($s,0,1,‘utf-8‘)){ case 1:return "Y"; case 2:return "E"; case 3:return "S"; case 4:return "S"; case 5:return "W"; case 6:return "L"; case 7:return "Q"; case 8:return "B"; case 9:return "J"; case 0:return "L"; } }else if(ord($s)>=65 and ord($s)<=90){//大写英文开头 return substr($s,0,1); }else if(ord($s)>=97 and ord($s)<=122){//小写英文开头 return strtoupper(substr($s,0,1)); }else{ return iconv_substr($s0,0,1,‘utf-8‘);//中英混合的词语提取首个字符即可 } }
mysql实现
如果当前数据库编码是utf-8，则进行转码，转为gbk，gbk默认汉字按照拼音排序存放：
1 SELECT * FROM USER ORDER BY convert(uname using gbk) ASC
如果当前编码为gbk则：
1 SELECT ＊ FROM USER ORDER BY uname ASC
php按照中文首字母排序
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