Question

So here is what I need to do.

If an user enters this: http://site.com I need to remove http:// so the string will be site.com , if an user enters http://www.site.com I need to remove http://www. or if the user enters www.site.com I need to remove www. or he can also enter site.com it will be good as well.

I have a function here, but doesn’t work how I want to, and I suck at regex.

preg_match('|^http(s)?://[a-z0-9-]+(.[a-z0-9-]+)*(:[0-9]+)?(/.*)?$|i', $_POST['link'])

Answer 1

I don’t think I’d use regex for this, since you’re only really checking for what is at the beginning of the string. So:

$link = $_POST['link'];
if (stripos($link, 'http://') === 0)
{
    $link = substr($link, 7);
}
elseif (stripos($link, 'https://') === 0)
{
    $link = substr($link, 8);
}
if (stripos($link, 'www.') === 0)
{
    $link = substr($link, 4);
}

should take care of it.