求注册正则匹配 后面或前面有“..”的不能注册
username:"^\\w+$", //用来用户注册。匹配由数字、26个英文字母或者下划线组成的字符串 username1:"^(\\w+)|([\\u4E00-\\u9FA5\\uF900-\\uFA2D]+)$", //用来用户注册,可支持中文
求注册正则匹配 后面或前面有“..”的不能注册
回复讨论(解决方案)
那你给出一个可以满足注册,正则要求?
$p='/^\.\.|\.\.$/';
不需要正则,能用字符串函数的就不用正则
$str = "..zh..ddjjdd..";
$user_left = substr($str, 0,2);
$user_right = substr($str, -2);
if($user_left == '..' && $user_right == '..'){
echo "非法用户名";
} else {
echo "合法用户";
}
这样就可以
不需要正则,能用字符串函数的就不用正则
$str = "..zh..ddjjdd..";
$user_left = substr($str, 0,2);
$user_right = substr($str, -2);
if($user_left == '..' && $user_right == '..'){
echo "非法用户名";
} else {
echo "合法用户";
}
这样就可以 后面或前面有“..” &&应该改为||、or
不需要正则,能用字符串函数的就不用正则
$str = "..zh..ddjjdd..";
$user_left = substr($str, 0,2);
$user_right = substr($str, -2);
if($user_left == '..' && $user_right == '..'){
echo "非法用户名";
} else {
echo "合法用户";
}
这样就可以 后面或前面有“..” &&应该改为||、or
抱歉,写例子的时候粗心,是or或者||都行
看他写的要求貌似是英数、下划线、常用汉字和一些全角符号都允许呢

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