正则表达式匹配7到12位数字；可能包含空格或连字符 [英] Regular expression to match 7-12 digits; may contain space or hyphen

问题描述

一段时间以来，我一直在尝试解决PHP正则表达式问题，但我做不到.我需要编写一个正则表达式，它将匹配7到12位数字(0..9)，并且可以选择在相邻数字之间使用单个连字符或单个空格.这就是我到目前为止所拥有的...

I have been trying to solve a PHP regular expression problem for awhile now but I just can't quite get it done. I need write a regex that will match between 7 and 12 digits (0..9) and there may optionally be either a single hyphen or a single space between adjacent digits. This is what I have so far...

$match1 = preg_match('/^\d[0-9\-\s]{5,10}\d$/', $number);
$match2 = preg_match('/(-\s|\s-|--|\s\s)/', $number);

如您所见，我必须使用两种不同的检查方式，但对我来说这还不够，因为我可以输入以下字符串:"1-2-3-4-5"，但由于共有9个字符，它仍然可以通过应该失败，因为只有5位数字.

As you can see I have to use two different checks and it still isn't enough for me as I can input this string: "1-2-3-4-5" and it will still pass because there are a total of 9 characters but it should fail because there are only 5 digits.

在此问题上的任何帮助都将非常有用，谢谢！

Any help on the matter would be great, thanks!

推荐答案

怎么样:

/^(\d[-\s]?){6,11}\d$/

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