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php 中文字符串首字母函数的获取

作者:福州市名人视觉形象设计职业培训学校 来源:www.mrssjy.com 发布时间:2017-09-09 10:22:46
php 中文字符串首字母函数的获取 function chineseFirst($str) { $str= iconv("UTF-8","gb2312", $str);//如果程序是gbk的,此行就要注释掉 //判断字符串是否全都是中文 (PS:^_^不错的php学习交流群:276167802,采集软件,验证:csl,专题,有兴趣的话可以加入进来一起讨论) 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 false; } }

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