how can I check the url?

Hello,
Is there a way to check if a user entered www. before the url?
thanks.

Yes, you can check inside the $_SERVER['SERVER_NAME'] global.

-Adam

doesn't works.

It does work. I just added it into a regular expression.

<?php
$url = $_SERVER['SERVER_NAME'];
$regexp = "^\www+.\.com$";
if(!ereg($regexp,$url)){
echo "no!";
}else{
echo "yes!";
}
?>
Check the $_SERVER global (http://ca.php.net/reserved.variables).

apperantly it doesn't works with sub-domains

Just edit the regular expression. Perhaps you should study PHP a bit more.

I did a test where:
I tried to echo $_SERVER['SERVER_NAME'] and one time I put the www and the other time I didn't and the result was the same in both of the times and only echoed the url without www

Use $_SERVER['HTTP_HOST'] or $_SERVER['SCRIPT_URI'] if you want the full requested path.

nope the same thing.

Awesome. Well, maybe next time you give a useless response why don't you include some diagnostic information that might help us. Information like errors, the code you're using, the value of the variables, the expected result, and the actual result.

Awesome. Well, maybe next time you give a useless response why don't you include some diagnostic information that might help us. Information like errors, the code you're using, the value of the variables, the expected result, and the actual result.

:eek: Wow...

Shedokan, check out http://us.php.net/reserved.variables. It should have the info you're looking for.

what I need is one of these:
<?php
echo $_SERVER['SERVER_NAME'];
echo '<br>';
echo $_SERVER['HTTP_HOST'];
echo '<br>';
echo $_SERVER['SCRIPT_URI'];
?>
but I can't use them because I'm using a subdomain.
there is this htaccess script:
RewriteEngine on
RewriteCond %{HTTP_HOST} ^subdomain.domain.com [NC]
RewriteRule ^(.*)$ http://www.subdomain.domain.com/$1 [L,R=301]'
but my webhost doesn't supports it yet.

Run this code, and post the output:
echo '<pre>' . print_r($_SERVER,1) . '</pre>';

Array
(
[SCRIPT_URL] => /hello.php
[SCRIPT_URI] => http://neostar.110mb.com/hello.php
[HTTP_HOST] => neostar.110mb.com
[HTTP_CONNECTION] => keep-alive
[HTTP_ACCEPT] => */*
[HTTP_REFERER] => http://www.110mb.com/
[HTTP_ACCEPT_LANGUAGE] => he-il,en-us;q=0.7,ru-RU;q=0.3
[HTTP_UA_CPU] => x86
[HTTP_ACCEPT_ENCODING] => gzip, deflate
[HTTP_USER_AGENT] => Mozilla/4.0 (compatible; MSIE 7.0; Windows NT 5.1; MRA 4.10 (build 01952); .NET CLR 2.0.50727; .NET CLR 3.0.04506.30; .NET CLR 1.1.4322)
[HTTP_X_FORWARDED_FOR] => 1.1.1.1
[PATH] => /usr/local/bin:/usr/bin:/bin
[SERVER_SIGNATURE] =>
[SERVER_SOFTWARE] => Apache
[SERVER_NAME] => neostar.110mb.com
[SERVER_ADDR] => 195.242.99.87
[SERVER_PORT] => 80
[REMOTE_ADDR] => 1.1.1.1
[DOCUMENT_ROOT] => /www/
[SERVER_ADMIN] => 110mb.server@gmail.com
[SCRIPT_FILENAME] => /www/110mb.com/n/e/o/s/t/a/r/_/neostar/htdocs/hello.php
[REMOTE_PORT] => 62440
[GATEWAY_INTERFACE] => CGI/1.1
[SERVER_PROTOCOL] => HTTP/1.1
[REQUEST_METHOD] => GET
[QUERY_STRING] =>
[REQUEST_URI] => /hello.php
[SCRIPT_NAME] => /hello.php
[PHP_SELF] => /hello.php
[REQUEST_TIME] => 1196132170
)


I had to delete a few things like my IP and cookies

Every suggestion given holds the url you were looking for in the original question.