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【正则表达式】检测字符串只包含数字、字母、下划线、汉字
- WBOYOriginal
- 2016-06-23 13:54:531476browse
RT
要验证一下用户名，只包含数字、字母、下划线、汉字，要求即使打乱顺序也能测出来
回复讨论(解决方案)
规则串：/^\w+$/u
适用于 utf-8 字符集，非 utf-8 的，转成 utf-8 的再使用
'/^[\x7f-\xffA-Za-z0-9_]+$/'
$s = '％';var_dump(preg_match('/^\w+$/u', $s)); //int(0)var_dump(preg_match('/^[\x7f-\xffA-Za-z0-9_]+$/', $s)); //int(1) 全角的标点不当做汉字
'/^[\x7f-\xffA-Za-z0-9_]+$/'
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