检查URI PHP

Question

I have a problem with checking the URI. I would like to create a pattern that will accept such a URI:

?name=key&name=key
#anchor

foo?name=key&name=key
foo#anchor

foo/bar/*
foo/bar?name=key&name=key
foo/bar#anchor

At the moment I have something like this:

$path = 'foo';
$uri = 'foo/bar/bb';
preg_match('/^('.$path.'[^\w])[\/\w\S]+$/i', $uri);
// OR
preg_match('/^('.$path.'|'.$path.'(\?|#)[\w\S\=\.&%-]+)$/i', $uri);

I would like to simplify it somehow. Thank you in advance for your help.

Answer 1

If you getting full url then it'll work. You can use filter_var with FILTER_VALIDATE_URL

Snippet

$url = "https://stackoverflow.com/questions/53304342/checking-the-uri-php";
if (filter_var($url, FILTER_VALIDATE_URL)) {
    echo "$url is a valid URL";
} else {
    echo"$url is not a valid URL";
}

Live demo
filter_var