joomla 中的这个正则表达式是什么意思? [英] What does this regular expression in joomla mean?

问题描述

我试图在我的网站上安装 joomla.在安装 joomla 时，我被要求创建一个 MYSQl 用户.但我不能，因为每次我输入密码时，它都会给出一条消息，说密码不符合正则表达式要求.下面给出的是正则表达式

I was trying to install joomla on my website. While installing joomla, I was asked to create a MYSQl user. But I couldn't because, everytime I type as password, it gives a message saying the paswword doesn't meet the reqular expression requirement. Given below is the regular expression

'(?=^.{8,}$)((?=.*d)|(?=.*W+))(?![.
])(?=.*[A-Z])(?=.*[a-z]).*$' 

这是什么意思?我可以提供什么密码?举一个能通过这个正则表达式测试的密码的例子.请帮帮我

What does this mean? What password can I give? Give an example of a password that will pass this regular expression test. Please help me

推荐答案

(?=^.{8,}$)

(?=^.{8,}$)

这部分表示还有8个字符，匹配从输入开始.

This part means has 8 more more characters, and the match starts at the start of input.

((?=.*d)

均值包含一个数字.

|(?=.*W+))

或者包含既不是字母也不是数字的东西

Or contains something that is neither a letter or a digit

(?![. ])

不以点或 UNIX 换行符开头.

not starting with a dot or UNIX newline.

(?=.*[A-Z])

(?=.*[A-Z])

至少包含一个大写字母.

Contains at least one capital letter.

(?=.*[a-z])

(?=.*[a-z])

至少包含一个小写字母

.*$

完全由非换行符组成，匹配的组将包含整个字符串.

Consists entirely of non-newline characters and the matched group will contain the entire string.

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