A simple question.

[Anon]

How can I check if the user has input a right URL?(e.g. "http://www.abc.com/abc.gif" is right,but "www.abc.com/abc.gif" is wrong)

[Anon]

$host = getenv("HTTP_HOST");

if($host == "http://www.abc.com/abc.gif")
{
echo "Thats the corrent URL";
}
else
{
echo "Not the right url";
}

Hope this helps..

Greetz, ChaoZ

[Anon]

What you can do is check to see if the first 7 characters are "http://". If not, add them.

if(substr($the_url, 0,7) != "http://") {
$the_url = "http://" . $the_url;
}

You might be better off having it display an error rather than automatically fix the url though, just in case the user simply typoed their entry.