Hello I am new here,
I am trying to get a url that is changing and convert it. It could be www1.url.com/whatever/../ up to www9.url.com/whatever/../

How can I do this with str_replace or preg_replace?

I am using preg_replace but I can't get it to work.

$site2 = preg_replace("/http:\/\/www[1-9].url.com\/$domain/i", ''$myurl', $site);

Any ideas?

thanks a lot in advance.

From what you have above, you appear to have an extra quote at the start of $myurl.

Also, 2 points:
1) . (dot) has meaning in a regular expression, so backslash it.
2) $domain is a variable whose contents may have meaning, so it needs to be protected.

Try something like this:

PHP Code:

$site2 = preg_replace("/http:\/\/www[1-9]\.url\.com\/".preg_quote($domain,'/')."/i", $myurl, $site); 


Now, there are other ways of solving this problem which may be calculationally more efficient (such as extracting the part after the url.com/ and before the next /) and comparing against various cases. Now, you haven't really told me what you're trying to do, so this is all inferred from the code you provided.

Hello there,
thanks for the reply.

I keep getting error:

Warning: preg_replace() [function.preg-replace]: Unknown modifier 'w'

I fixed it using your .preg_quote($domain,'/').

no errors now but I don't get my replacement.... i guess i am missing something somewhere. will post back

That's likely because you didn't escape the / in front of www. When posting errors, copy-and-pasting your code is very helpful.