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PHP Regex pattern for C???-??-?-*

原文 2016-09-01 07:04:03 6 2 php/ regex/ preg-match

I need to match a string to this pattern C???-??-?-* (example: CRPN-NN-N-036+ )

So far I found this regex pattern:

/^(C-)*[a-zA-Z]{3}-[a-zA-Z]{2}-[a-zA-Z]-

But this doesn't work.

2 answers

^C[a-zA-Z]{3}-[a-zA-Z]{2}-[a-zA-Z]-.*

这是一个例子

The dot (.) matches a single character, without caring what that character is. The only exception are line break characters.

So, we can use ^C.{3}-.{2}-.-.* to make the regex more general. This pattern even can match C???-??-?-*

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