PHP preg_match url

Question

I have a problem with preg_match in PHP.

I have URLs:

http://mysite.com/file/w867/2612512232
http://mysite.com/file/c3233/2123255464
etc.

I need URLs:

http://mysite.com/file/2612512232
http://mysite.com/file/2123255464

I must remove:

w867/
c3233/
etc.

Answer 1

You don't necessarily need to use preg_match. parse_url() can do the job.

http://us.php.net/manual/en/function.parse-url.php

Just make sure to concatenate it all against without the part you don't want.

Answer 2

you could try a pattern like this:

"/(.*)\\/([^/])*\\/(.*)/"

and then with str_replace you can: $string = str_replace('/'.$matches[2], '', $string);

Answer 3

preg_replace("|file/\w+/|", "file/", $url);

这将在“file /”部分之后的“/”符号之间搜索第一个模式。