截取中文字符防止乱码

js:

var pattern = /^[".chr(0xa1)."-".chr(0xff)."a-zA-Z_]{3,18}$/,
    str = '';
console.log(pattern.test(str));

php:

$str = '';
$isMatched = preg_match('/^[".chr(0xa1)."-".chr(0xff)."a-zA-Z_]{3,18}$/', $str, $matches);
var_dump($isMatched, $matches);

 

n=/^[".chr(0xa1)."-".chr(0xff)."a-zA-Z_]{3,18}$

 

 

 

 

 

 

 

 

-table-range-border" contenteditable="false" style="display: none;">