CODEWITHSUNDEEP
phpregex
Jeff Solomon
Jeff Solomon

Reputation: 473

How to put wildcard string in URL using Regex PHP

I have a url: http://domain.com/home/audio/14/1/file.mp3

But the strings inside the last to sub directories could be different, such as:

http://domain.com/home/audio/142/14/file.mp3 or 
http://domain.com/home/audio/67/424/file.mp3

The formatting # of sub directories will be the same, but I need to be able to get the file.mp3 regardless of what the /xx/xx/ has. I'm trying to build a Regex in PHP to accommodate this, some kind of wildcard in place of the characters that could be in those sub directories. Something like:

http://domain.com/home/audio/[wildcardregexhere]/[wildcardregexhere]/file.mp3

Sorry, I've never done Regex before. Thanks for the help.

Upvotes: 0

Views: 2169

Answers (1)

dev.null
dev.null

Reputation: 538

There are a lot of possibilities, one is to match all characters instead of slash /. How will you express this? Like [^\/]*. In the brackets you list all chars, that should match, but with ^ at start you negate the list. So you want to match other than slash (you have to escape it, so we use \/ instead of single /). And with the asterisk we say, that there could be zero, one or a lot of characters other than slash - its the wildcard you are looking for.

So how will the whole regexp look like?

http:\/\/domain.com\/home\/audio\/[^\/]*\/[^\/]*\/.*\.mp3

I guess, that file could any match, so I used .*. In perl or php syntax it will be like:

/http:\/\/domain.com\/home\/audio\/[^\/]*\/[^\/]*\/.*\.mp3/

In Java you have to double quote (escape the escape character backslash \\).

Good luck!

Upvotes: 2

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