【正则】如何写判断提交的用户名中不包含如下特殊字符?求方法
对提交的注册用户名 $uname 的需求:
1 要求名称可以由中文 英文混合组成,但是中间不能包含有空格
2 不能包含如下 $arr2 中的特殊字符
3 但是可以包含中文的 左右括号 “(” “)”
<?phpfunction checkReg($uname){/**//写成简短的$arr2 = array('~', '!', '@', '#', '$', '%', '^', '&', '*', '_', '+', '|', '-', '=', '\\','{', '}', '[', ']', ':', ';', '"', '\'', '<', '>', ',', '.', '?', '/', '“', '”','’', '‘', '【', '】', '~', '!', '¥', '……', '??', '、', '《', '》', '。',PHP_EOL, chr(10), chr(13), "\t", chr(32),);**/ $arr2 = array( '~', '!', '@', '#', '$', '%', '^', '&', '*', '_', '+', '|', '-', '=', '\\', '{', '}', '[', ']', ':', ';', '"', '\'', '<', '>', ',', '.', '?', '/', '“', '”', '’', '‘', '【', '】', '~', '!', '¥', '……', '??', '、', '《', '》', '。', PHP_EOL, chr(10), chr(13), //\r\n "\t", chr(32), ); foreach ($arr2 as $k) { //我之前用 preg_match 结果有乱码,全乱了。后来用strpos (default7#zbphp.com) if (strpos($uname, $k) !== false) { $tips = "注册名中不能含有空格、点、逗号等特殊字符!"; return array(false, $tips); } } return array(true, 'ok');}
回复讨论(解决方案)
if(strlen($s) == strlen(str_replace($arr2, '', $s))) { //不包含特殊字符}else{ //包含特殊字符}
if($s == str_replace($arr2, '', $s)) { //不包含特殊字符}else{ //包含特殊字符}

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